Motor choice would depend on budget really. But here are a few examples:
Cheap: Feigao/wanderer/nemesis 8xl or 9xl, KB 45, MegaMotor 22/45/1e, Medusa 36/60/2000kv
Not cheap: Neu 1515 1y, lehner 1950/6, Hacker c50 maxx
Mike has a good selection, and ImpaktRC has an even better one (strange but true):
CLICKY.