I’ve been using boom-bet.nl for a while, and I’d say the top markets really depend on what you’re into. Football is definitely the most popular, with tons of options like match result, goals, and handicaps. But tennis and basketball are also huge, especially for live betting. You can also look into niche sports like darts or snooker if you’re after something different. If you enjoy more strategic betting, consider markets like over/under or even prop bets, which can be more profitable if you know the sport well. Overall, football and tennis tend to offer the best variety and value, especially during major tournaments.