I like every type of game

pick the one you like the most that you can play for hours on end

SpongeBob SquarePants: Battle for Bikini Bottom

https://www.speedrun.com/bfbb

https://www.speedrun.com/games#platform=GCN%2CWii%2CWiiVC&sorting=playerCount&direction_sort=on

Try Mario Kart Wii.

Paper Mario : TTYD Super Paper Mario (debatable though ?) Okami Pikmin 1 & 2 (GC versions cos' better for runs iirc) Luigi's Mansion Wario World

There's a lot more but i think that's enough for now.