Nintendo franchise:
Legend of Zelda is an action-adventure video game franchise that was made by Super Mario Bros creator, Shigeru Miyamoto and it's about Link, a Hyrulian who wants to rescue the princess Zelda from Ganon's/Ganondorf's hands.
It was inspired by various mythologies/legends (Greek mythology, Arthurian legends) and J.R.R. Tolkien's "Middle earth" books (like "Lord of the rings" for example).
Legend of Zelda is one of most popular Nintendo franchises along Super Mario, Animal Crossing, Splatoon and Pokemon. Heck, it's games were considered as the greatest games of all time and the franchise was even referenced in pop culture.
Heck, it even had lots of great games in the series that affected the video game industry (Ocarina of Time, Breath of the Wild and Tears of the Kingdom)
Racers:
- Link (Default design: Classic link - Link wears his green outfit)
- Zelda (Default design: BOTW design)
- Ganondorf (Default design: Ocarina of Time)
Franchise content:
Racers: 9 racers (LoZ has a huge cast of characters)
Tracks: 3 tracks
Vehicles: 4 vehicles (they can also come from Mario Kart)
Wheels: 3 wheels
Skins: 3 Skins (1 for Link, 1 for Zelda and 1 for Ganondorf)
I nominate TLoZ as a Nintendo franchise, because Zelda deserves to have a spot in the game since there are a lot of content to pick from the games. Heck, Zelda recently is going crazy with their games like BOTW and TOTK (they sell very well and they became greatest games of all time).