directbet is good,
I would recommend you nitrogensport.eu, jetwin.com, betcoin.ag. They are all good.
BTW, I find a comprehensive thread for you.
https://bitcointalk.org/index.php?topic=577102.04.8 fairlay.com ( 8 )referral link removed
4.4 betmoose.com ( 6 )referral link removed
4.0 nitrogensports.eu ( 59 )referral link removed
3.4 casinobitco.in ( 19 )referral link removed
3.1 anonibet.com ( 50 )referral link removed
3.0 betcoinsports.com ( 14 )referral link removed
3.0 betvip.com ( 6 )referral link removed
These sites have over 3 points, recommend them. I think they all have affiliate program.