The Best Online Betting Sites Reviewed and Rated by Professional Bettors. Our Top-3 Legitimate and Safe Online Sportsbooks with Great Odds. Sports . You'll be able to bet more on football and basketball than you will tennis or e-gaming. August 23, ➔ Find the Best Online Sports Betting Sites! ➔ Read are essentially virtual casinos that accept real money to wager on real sporting events. Here we've given our honest opinion on what the best sports betting sites are based on If you're looking to bet a more obscure sport that's not on the list below, we . Even if a site is flawless in all other aspects, if their odds and lines aren't Top Betting Sites by Sport · Advice for Choosing Where · Online Betting FAQ.