nowdays it is now verry easy to check all the bounties and find whether it is legit or not because there were now a lot of sites online that list all of them (try googling "ico list" ) . you can also check them out here on the forum itself , usually they can all be found at the bounty altcoin boards or altcoin service discussion boards.  you dont also need to find a good manager in order to check those list because a manager is only managing a campaign but not listing all of them one by one.