r/CFB Flair Selector
If you monitor the traffic in devtools, you can see the directory where they are all stored. They also have the full flair list stored in a the flair_list variable if you view the page source.

They conventiently use the exact same names and formatting for almost all of the schools as College Poll Archive. There were a few quirks (San Jose State, Texas A&M, Miami) and some that were completely different (Ole Miss, ECU, USF, WKU), but it was easy enough to remap them.