How about Kansas and Texas A&M?
The SEC doesn’t have a GOR*, and members are free to go, after all. And A&M’s spite carried them to the SEC—it could carry them to the B1G just as easily.
And the B1G was willing to abandon the contiguous footprint idea when it toyed with Georgia Tech and North Carolina as potential expansion targets, not unlike what we’re seeing with certain PAC-12 schools willing to talk.
Plus A&M was part of the original five-team plan in 2010 to move to the B1G (until they got greedy), so they’re already a vetted quantity to the B1G offices.
And hey, it will probably mean someone like Iowa State or Kansas State would get a SEC invite and be spared too. Because neither school is getting a B1G invite—they don’t expand the footprint or the cache of Football or Basketball.
Otherwise…I wonder what the GOR is like for Colorado and the PAC-12…because that’s really the only other quality add. ACC is locked down, doubt any other SEC teams would flip, and there’s no one else in the Big XII worth picking up (quit with the garbage Iowa State or Oklahoma State suggestions, FFS).
*While there isn’t a GOR set up at the Conference level (like B1G or Big XII has), there are media agreements with ESPN that will be tricky and costly to unwind. Not impossible…just cumbersome.