Oregon would be good. Saban I think could make the call without having to Google the coaches number. I would like to play Michigan while Harbaugh is still there but I doubt he will still be there in 2025. There are several mid-level big 12 teams that are sort of respected. Beating them would not be particularly hard but no one could say we played a pushover.
I think scheduling a few more power 5 teams would be good. They don't have to be massive game but I think even games against mid level teams like UCLA, Purdue, Virginia etc. would be a whole lot better than the Western Carolina's of the world..