MM book in FM series

Hello everyone ,

I’m looking for a series where majority of the books are FM but there is at least one MM book. I’ve been looking for this ever since Rina Kent’s LOG series. I would prefer if they were interconnected so that we can see the characters in the eyes of other people. I would also prefer if at least one of them is not out or even a bi/gay awakening. Thxs!

Edit: I would prefer college or darkish romance books but any suggestions are welcomed