best sports to bet on if you actually know what youre doing?

Always hear people say stick to the sports you know, but I wonder if that’s actually enough. Like I’m a big basketball and soccer guy, can tell you the starting lineups, subs, even weather factors if it’s outdoor. But I keep seeing folks cash in on tennis, UFC, even table tennis, and they swear there’s more value because the markets are softer or books pay less attention.

Feels like if you actually have deep knowledge, you can find edges in any sport, but sometimes there are so many variables you just end up overthinking everything. Some of my friends jump all over smaller leagues or weird prop bets thinking they’ll beat the system, but I’m not sure how sustainable that really is.

Curious what people here focus on and why. Is it safer to stick to the mainstream stuff, or do you really get more value in the obscure sports if you put in the homework? I don’t want to chase shiny objects, but I’m getting tired of getting burned by last-minute NBA rest days and soccer VAR madness.