Ah, when reading other people's responses, I was reminded of a good way to find fic at AO3. I go to an author I like and try to read their fandoms that I don't know very well. If it doesn't work, well, I just stop. But I haven't tried looking at their BOOKMARKS of stories that they really like enough to save, so I'm going to try that. Also, I have more authors I like whose "other" works I haven't read, yet.