FWI: A dark horse from completely outside of politics clinches the Republican nomination in 2028; who could you see doing it that hasn't been talked about much?

Basically this is FWI is an inverse of the one made by u/cerrathegreat. It's basically the same premise but on the GOP's side of the political spectrum.

Can you think of anyone on the GOP side clinching the Republican nomination? Or is there pretty much nobody who can see doing that?