From JessN's list, my top choices would be these three listed below. Percentages are for entertainment purposes only - a guess at the likelihood of the coach taking the job - and do not reflect any scientific process.
1. Kirby Smart - Who leaves his alma mater that he has on a Saban/Alabama trajectory on vastly more fertile recruiting ground to work in the shadow of Saban's legacy?
If we can't clone Saban, this is the closest guy to the real thing.
0.000000000226% chance
2. DeMeco Ryans - Who leaves an NFL playoff team with a rookie franchise quarterback following a first season turnaround from laughingstock to possible perennial Super Bowl contender?
Had the Texans lost last week, this may have been slightly less improbable but I couldn't see Ryans leaving Houston after the season they've had. As Jess mentioned, the timing here is awful for any possibility of mama calling. Plus, Ryans has zero experience as a college coach and the portal and NIL would add to the learning curve. Personally, I'd trust DeMeco to get it done but it just isn't the right time.
0.00035%
3. Lane Kiffin - That leaves Lane Kiffin. Of the candidates, he has the combination of a strong resume and a school that you wouldn't think twice about leaving for Alabama. He rivals Sarkisian in offensive genius, is younger, and doesn't have the additional headache of paying more than whatever Texas boosters are willing to offer. I think he's an elite offensive mind and won't make defense an afterthought, despite overwhelming evidence that Ole Miss' D is using a napkin to protect their endzone.
69%