Super Mario Party Jamboree has a host of modes, and most of them can be played online with up to eight players in certain ones, like Koopathalon.
While you can start a party and play with random players, this is a Mario Party game. And what’s a Mario Party game without your actual friends? You can create lobbies to play with your friends in the multitude of modes around the world as long as you complete specific actions first. It’s pretty straightforward once you know what you’re doing, but Nintendo does a painful job of teaching players what to do to set up their first match.