I found this seed while testing 1.16 release 5. Tried it in release 8 and it works the same.
Spawn is next to a river, with a zombie village just across the river. Part of the village goes into a small jungle biome with bamboo. Plains, mountains, most forest types, all within sight of spawn.
The village has a Blacksmith, a building with cauldrons, and a few other buildings all have chests with good items. There's also one of those broken nether portal things in the opposite direction from spawn, it has a chest with some seriously good items for starting out: gold chest plate with blast protection, gold pick with silk touch, two axes and two shovels, all with decent enchants.
Can't seem to find the ruined portal but the village is excellent! An enderman randomly showed up and I got a pearl plus grass block first thing, lost a cat in the woods with salmon, and the only surviving zombie villager got stuck in cobwebs so I had to deal with them too sadly.
Found it with cheats, it was in a totally different direction. Chest in the back is excellent.
I remade the world in RC1 and managed to save 3 zombie villagers so I think I will use them to revive the village and forget the ender pearl and grass block from the other copy. Also caught enough fish to tame the only two cats there so that's nice.