olderthannetfic:

This kind of thing is easily answered with the works search. It’s only annoying if you want a bunch of different data for a chart. Currently, the works with >1000 comments number:

17,026

On a different note, IDK a good way to see a list of fandoms from works search, but if you go to a huge tag like m/m, you can put in a comments range and still get the sidebars. Out of m/m fic on AO3, the ones with >100 comments show:

  • Harry Potter – J. K. Rowling (10841)
  • 방탄소년단 | Bangtan Boys | BTS (10022)
  • Marvel Cinematic Universe (8870)
  • 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga) (8836)
  • The Avengers (Marvel Movies) (7753)
  • Supernatural (TV 2005) (6675)
  • Teen Wolf (TV) (6184)
  • 魔道祖师 – 墨香铜臭 | Módào Zǔshī – Mòxiāng Tóngxiù (5331)
  • Captain America (Movies) (5248)
  • Sherlock (TV) (4886)

And if you exclude those:

  • Haikyuu!! (3306)
  • Good Omens (TV) (3275)
  • Voltron: Legendary Defender (3155)
  • Star Wars – All Media Types (2770)
  • Yuri!!! on Ice (Anime) (2746)
  • One Direction (Band) (2665)
  • Stranger Things (TV 2016) (2530)
  • Naruto (Anime & Manga) (2441)
  • Good Omens – Neil Gaiman & Terry Pratchett (2380)
  • Shingeki no Kyojin | Attack on Titan (2001)

So about what you’d expect, really. Big, big fandoms and ones that have been active while AO3 has been popular. No doubt if I repeated this for some other category or rating or other big tag, you’d get a similar story: big-ass, currently-active fandoms. Searching for >1000 comments instead of >100 gets similar results, just with fandoms reordered slightly.