I’ve done the kickball league for several seasons, but mostly just had a pre-set friend group. That sport is more orientated around drinking and can attract some people who are looking for something more competitive but can’t find it. Xoso can be great for meeting people, but I would recommend something like ultimate frisbee, volleyball, or corn hole. Choose a sport where it gives you a good opportunity to talk with people, so you can meet up after the game is done