The 8 Chunker
Minecraft Seed: 144091928291930
This seed is one of the best and most OP seeds I have ever found, if not the best. First off, it spawns you in a village, which is pretty good even on its own. When you check the blacksmith’s, you can find 2-5 diamonds, 2-8 obsidian and some general gear.
The obsidian comes in very handy because just off the coast (it’s a coastal village, by the way) there is a ruined Nether portal underwater. It will take you next to a bastion and near a Nether fortress too. On one side of the portal there is a shipwreck, and on the other there is a cold ocean ruin. Both have decent loot, plus a treasure map on Switch. To top it off, the walls of the stronghold line up with the front of the village blacksmith.
This is a really OP seed, particularly for speedruns. As far as I am aware, it works on Switch and Xbox, but it might well work on other platforms too.
Enjoy!