Ga Tech (Atlanta) and Miami make some sense. Lots of B1G Alumni in those areas. As CFB becomes more like the NFL, good to have NFL cities. It is about streaming TV markets, recruiting area, brand. Recruiting area is important, see MD and Rutgers. Good programs in good match ups drive ratings, and to be a good program requires good recruits. I really want UNC and UVA, we'll see. I am also warm on Texas Tech now that I looked at them. 40,000 students on campus, plan to attain AAU, in Texas, have an airport. A reduced share for a while, could make some sense.
Also, the conference can't all be juggernaut, some middling programs is good (for Penn State at least).
So in a nut shell, I want UVA, UNC, Ga Tech, Miami, Texas Tech. Also think Colorado, Utah, and Arizona State (or Arizona) make sense. That's 26 I believe. Obviously ND. And I'd take Stanford (San Francisco, Oakland) or Boston College (Boston) if ND required. With reduced shares and taking share away from ACC, B12, etc., it can work.