that's a tough list because you are mixing 2 criteria here & I would probably throw in GT/Clemson because I think they might be easier to get than UNC/VA, it is probably easier to break the list into 2 groups:
1) Availability - this is all the B12 other than Texas/Oklahoma and any other team not affiliated w/ B1G/SEC/ACC; ACC is ?, B12 falling apart helps ACC, but money disparity, pandemic impact on budgets, playoff scenarios, general nervousness that ACC is not the most stable could open someone up ( I would never have called MD ahead of time)
2) Desirability - In the B12 that is 1)Texas 2) OK, 3) Kansas and no one else, we have been debating if Kansas meets the threshold, & I think it is fair to ask if OK meets the threshold. If this opens up ACC; 1) ND, 2) UNC 3+) VA/GT/Clemson, maybe FSU. then maybe an outside chance a wildcard opens up like Texas A&M or the big has enough money they might be able to pry Colorado from the Pac12, I also suspect the big might be able to pry MO away from the SEC if they needed a 16th member to balance out.