These are two cool seeds I found:

Derpy seed -4873767187740976131 this is the weird one it spawns you near a well and a FLOATING CACTUS! And a village along with a exposed dungeon. Its pretty cool and you should check it out.

Superflat diamond seed -28891594870345880 This one is just awesome it spawns you near a village with 8 DIAMONDS! And some other stuff. good for hardcore superflat.

Thanks for looking please diamond if you like it!