Your 3rd recommendation is the best option for UM. Great offensive mind, big time developer of QB's (compare Sam Darnold 2020 to 2021). Forget Eric Bieniemy of KC, it's the NFL or USC for him. Bill O'Brien, Hugh Freeze and Anthony Lynn, no thanks.
UM will never fire Lane Kiffin, thankfully. Saban advised Kiffin to leave Alabama, as he had enough of him. It was leave or get fired, not the kind of recommendation you want.