if youre really interested in the idea of gaminfying good sportsmanship, I think the Deep Rock Galactic community would be the best place to start. it’s not devoid of toxicity, but it has arguably the least amount of it out of any other online game. I think the devs mentioned they think a lot of it has to do with things like having a solute/celebrate button (hence why all DRG fans will communicate via yelling “ROCK AND STONE!”), although being a co-op non-vs game helps I’m sure.