to be honest i usually dont play on betting websites though if i want to make a bet i usually choose to go with directbet.eu or anonibet
besides that you should google about the sportsbooks websites before making a bet because you should search for the best odds
Fairlay Bitcoin prediction market - the future of reliable information. Has a dedicated eSports wide section.
have to bet on a few betting site cause some of them r quite limited but it has some of the rare games too. but overall, i still prefer directbet.eu. because it is user friendly for me.