Here's a seed with 3 saddles in a Zombie Dungeon close to first spawn. This is useful for when 3 friends want a fast way to ride pigs together on Survival mode from the very start, lol.
If you go to cordinates X386 Y 68 and z24 there is a skeleton and zombie spender right next to each other in the small little cave you don't even have to go down in its right there check it out on that same seed
Seed: 3353993496632883810