CU fan here: Cyclone Fanatic is my favorite opposing fanbase place to browse for sure. Although it seems to freeze for me sometimes, there’s always great content and debate. You’re in the right place for Cyclone content.
Basically all of the above I agree with for opposing fanbases boards, although I’m replying to this message for the Kansas portion.
I've got a Kansas buddy and he said they have an invite only Discord that is their main place for fan interaction now. It’s headed by one of their insiders but idk how to get in. If I figure out a way I’ll post it here.