This is a rather difficult question, because it depends on the person. Someone prefers classic sports such as football, cricket, rugby, basketball, golf and so on. Some are fans of something out of the ordinary, such people usually bet on dog racing, trotting or snooker. There are clients who are not at all interested in "active" sports; cybersport has become their alternative. Well, for those who do not recognize any sport at all, even esports, we have bets on politics, that is, bets on parliamentary or presidential elections and the like. On our site, you can even place a bet on the winner of the Eurovision.
To determine which sport you like best, you can try to place bets on several of them and then decide which sport you know better.