I'm actually waiting for your list to see if you could really find some best bounty campaigns for Junior Members, because honestly I don't see any best bounty around here. Anyway, hope you update the OP.
Wish you all the luck, man.
i think actually he wants a suggestion from us which bounty is good for Jr member then he will listed it into the first post
and if you want to join a good bounty here's my tip you must join a bounty from the trusted bitcointalk manager