Just have 3, 4 team pods.
OGs
KSU
ISU
OSU
KU
Texases
TCU
Houston
TT
Bay
The Mountain-River-Swamp
UCF
WV
Cincy
BYU
You play all your pod teams, and 3 of the other two, and have it rotate with home/away and which of those 3 so you would essentially play everyone and every 4 years you have played everyone home and way, and the cycle repeats every 8 years like:
Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8
TCU at TCU at UH UH TT at TT at Bay Bay
at UH UH TT at TT at Bay Bay TCU at TCU
TT at TT at Bay Bay TCU at TCU at UH UH
at UCF UCF WV at WV at Cincy Cincy BYU at BYU
WV at WV at Cincy Cincy BYU at BYU at UCF UCF
at Cincy Cincy BYU at BYU at UCF UCF WV at WV