A good speedrun seed with a Lava lake, ravine, and ruined portal with 1/2 full portal next to spawn. If you make a portal with the lava lake you spawn right next to a Nether Fortress!
While doing a Minecraft Manhunt with some friends we found this amazing seed that spawns you with a lava lake, ruined portal, and ravine within 100 blocks of spawn. The ravine has exposed diamonds and if you make a portal within the ravine or lava lake you spawn next to a nether fortress.
Lava Lake: 49 64 54
Ruined portal: 68 64 138
Ravine: 18 67 136