Whats the surprisingly prolific fandom you’ve discovered?

I just watched The Eagle starring Channing Tatum and Jamie Bell. Gave off such Roman Homoeroticism so searched it on ao3.

Their tag has 966 works, 913 of which are completed. Last work posted last April 2024. All this from a single movie released in 2011 that ive never heard of.

So whats your surprisingly prolific fandom? I want to consume the media of which there are many fanfic so I have something to read after. lol