I wanna try and get ACCF or MKWii and play online but i only have a Wii U but its backwards compatible with the Wii U
Yeah, you can get it running on the Wii U.
If your vWii is modded, you can get it running through Priiloader whenever you boot up a Wii game. Otherwise, you can go into Wiimmfi patcher every time you want to play a game too.
If it’s not modded, there is a DNS method but Animal Crossing Let’s Go To The City isn’t supported on the DNS method.