A lot of folks will say Mario Kart, which is valid, but as I already own it on Wii U, I'd say ARMS. It's super competitive and really fun... and has a really nice, polished look, good presentation, etc.
I hate recommending new games out of hype. But what a great game Arms is with no guarantees lmao most fun I've had in while and prob the best money I've spent since Zelda