-Aether Rift Edition for 1.13.2 (couldn't find the 1.13 version but even so the 1.13.2 one is more playable, still WIP/incomplete of course but playable)
-Dorsim for 1.13 (was and still is in Alpha, you can't dismount or attack the dolphin when riding so only test the mod as you can't do much afterwards with the world)
-Ender Compass archives of 1.7.10 to 18w50a and both 1.13 Rift versions
-HaunchHUD (like appleskin) found a hosting site
-Relocate for Rift 1.13
-Mouse Tweaks for Rift 1.13/1.13.2
Edit:
-Corail Pillar for Rift 1.13
-Corail Recycler for Rift 1.13
-LocaleFixer for Rift 1.13
Not found:
-WATT Waterlog all the things for Rift 1.13 (Towelette is a good Fabric 1.14+ successor so I'd recommend using that)
I think that's all Rift mods that existed for 1.13 & 1.13.2 to my knowledge now accessible with a download link (besides WATT of course).
Forge Mod:
-Xaero's Minimap
https://www.curseforge.com/minecraft/mc-mods/xaeros-minimap/files
-More Vanilla Armor
https://www.curseforge.com/minecraft/mc-mods/morevanillaarmor
-Random Armor Mobs
https://www.curseforge.com/minecraft/mc-mods/randomarmormobs
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Searchable Chests
https://www.curseforge.com/minecraft/mc-mods/searchable-chests/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Xaero's Minimap
https://www.curseforge.com/minecraft/mc-mods/xaeros-minimap/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Xaero's Minimap (Fair-Play Edition)
https://www.curseforge.com/minecraft/mc-mods/xaeros-minimap-fair-play-edition/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Added to Rift mod listings:
-TIS 1.13 not 1.13.2
https://ci.cil.li/job/TIS-3D-MC1.13-Rift/
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Effortless Building Mod
https://www.curseforge.com/minecraft/mc-mods/effortless-building
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Xaero's Minimap
https://www.curseforge.com/minecraft/mc-mods/xaeros-minimap/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Xaero's Minimap (Fair-Play Edition)
https://www.curseforge.com/minecraft/mc-mods/xaeros-minimap-fair-play-edition/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Nature's Compass
https://www.curseforge.com/minecraft/mc-mods/natures-compass/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Rift Update:
-Bedrock Break Helper
https://www.curseforge.com/minecraft/mc-mods/bedrockbreakhelper/files/all
Already Known But If Want A Newer Posting Of It Or It On Curseforge:
-StepUpNext 1.13.2 Rift
https://www.curseforge.com/minecraft/mc-mods/stepupnext/files/all
Forge Mod:
-Ride On
https://www.curseforge.com/minecraft/mc-mods/rideon
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Rift Update:
-Bedrock Break Helper
https://www.curseforge.com/minecraft/mc-mods/bedrockbreakhelper/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Rift Update:
-Bedrock Break Helper
https://www.curseforge.com/minecraft/mc-mods/bedrockbreakhelper/files
Forge Mod:
-Game Menu Mod Option
https://www.curseforge.com/minecraft/mc-mods/gamemenumodoption/files
-SurvivalPlus Lightsabers
https://www.curseforge.com/minecraft/mc-mods/survivalplus-lightsabers/files/all
-More Than A Pickaxe
https://www.curseforge.com/minecraft/mc-mods/more-than-a-pickaxe/files/all
-SurvivalPlus
https://www.curseforge.com/minecraft/mc-mods/survivalplus/files/all
-Advanced Creative Mode Tab
https://www.curseforge.com/minecraft/mc-mods/advanced-extended-creative-mode/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Default Option
https://www.curseforge.com/minecraft/mc-mods/defaultsettings/files/all
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mods:
-Default Settings
https://www.curseforge.com/minecraft/mc-mods/defaultsettings/files/all
-Interesting Addons
https://www.curseforge.com/minecraft/mc-mods/interestingaddons
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Cursor Mod
https://www.curseforge.com/minecraft/mc-mods/cursor-mod/files
-Default Settings
https://www.curseforge.com/minecraft/mc-mods/defaultsettings/files/all
-Advanced Creative Tab
https://www.curseforge.com/minecraft/mc-mods/advanced-extended-creative-mode/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Default Options
https://www.curseforge.com/minecraft/mc-mods/defaultsettings/files/all
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-TPS Mod
https://www.curseforge.com/minecraft/mc-mods/tps-mod/files/all
-LitLaunch (use alongside TPS)
https://www.curseforge.com/minecraft/mc-mods/litlaunch/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Vanilla:
-Bounding Box Outline Reloaded 1.13.2, 1.14.2, 1.14.4, 1.15.1 Vanilla
https://www.curseforge.com/minecraft/mc-mods/bounding-box-outline-reloaded/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forum Update:
Rift Download Links
-Aether Rift Edition for 1.13.2 (couldn't find the 1.13 version but even so the 1.13.2 one is more playable, still WIP/incomplete of course but playable)
-Dorsim for 1.13 (was and still is in Alpha, you can't dismount or attack the dolphin when riding so only test the mod as you can't do much afterwards with the world)
-Ender Compass archives of 1.7.10 to 18w50a and both 1.13 Rift versions
-HaunchHUD (like appleskin) found a hosting site
-Relocate for Rift 1.13
-Mouse Tweaks for Rift 1.13/1.13.2
Edit:
-Corail Pillar for Rift 1.13
-Corail Recycler for Rift 1.13
-LocaleFixer for Rift 1.13
Not found:
-WATT Waterlog all the things for Rift 1.13 (Towelette is a good Fabric 1.14+ successor so I'd recommend using that)
I think that's all Rift mods that existed for 1.13 & 1.13.2 to my knowledge now accessible with a download link (besides WATT of course).
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2
Forge Mod:
-Upside Down
https://www.curseforge.com/minecraft/mc-mods/upside-down/files
Niche Community Content Finder, Youtuber, Modpack/Map Maker, Duck
Forum Thread Maintainer for APortingCore, Liteloader Download HUB, Asphodel Meadows, Fabric Project, Legacy Fabric/Cursed Fabric, Power API, Rift/Fabric/Forge 1.13 to 1.17.
Wikis I Maintain: https://modwiki.miraheze.org/wiki/User:SuntannedDuck2