One of my passions is preserving the history of the fanfiction community. And one of my favorite universities doing this work is Texas A&M University. In addition to the large sci-fi/fantasy collection (the papers of Martha Wells and George RR Martin) they have many slash and gen fanfiction fanzines. Check out this video from 2022 about their Science Fiction and Fantasy Collection
Read more about the TAMU Fanzine collection here: https://fanlore.org/wiki/Texas_A%26M_Cushing_Library_Fanzine_Collection