I think a good site is direcbet.eu because after I saw my friend's feedback and there is a gambling enthusiast.
Directbet site is the best site for sports betting but they don't have a faucet to collect bitcoins and bet on any games. You should send bitcoins to bet.
Fortunejack has a faucet, not more, but ok, primedice has a faucet too.
Fortunejack and primedice got a faucet for dice game but you can't bet on any sports from these sites.