betting sites means you suggest the best sites for sport betting and i suggest you stick to the old sites such as directbet or sportbets.io especially the first one i mentioned because this site have good reputation for sport betting or for reference you may check the polling on this thread https://bitcointalk.org/index.php?topic=1859063.0

However the now hot trend these days is sportsbet.io , it is definitely a new up and comer and shows promise. It has amazing marketing strategy, it gives tipsters a good affiliate and people who gave out tips for bets show their website which attracts betters. This method provided with a lot of users for them and seems to be going alright so far.

If you don't like to give your personal details try https://directbet.eu
But if you are ok with KYC policy you can bet with https://sportsbet.io
If you don't have bitcoin and like to play with perfectmoney bet with http://roadbet.com