The biggest thing here will be if your laptop can run it. Emulating takes more out of your computer than just playing the game, it also has to do the work of pretending to be a wii. How to has been addressed, I have a molded wii that I use for GameCube emulations/homebrews so I'm not really sure how beefy of a laptop you'll need.
Help me get The Legend of Zelda: Windwaker on my laptop oh wise one
For sourcing roms/isos/whatever: https://r-roms.github.io/
To play Windwaker you'll want to use Dolphin (a GameCube and Wii emulator): https://dolphin-emu.org/
If you have more questions feel free to drop them here and I/someone else can surely get you up and running.
The biggest thing here will be if your laptop can run it. Emulating takes more out of your computer than just playing the game, it also has to do the work of pretending to be a wii. How to has been addressed, I have a molded wii that I use for GameCube emulations/homebrews so I'm not really sure how beefy of a laptop you'll need.