Taking place in high school is fine but I find slice of life/teen drama unbearably dull (especially when that's the entire plot), meaning I'm not including Bloom into You or Citrus and similar. Sorry.
I'm picking only anime with textual queerness or very strong implications rather than vague subtext. Many of these titles have canon F/F representation in that you literally see women kissing or sleeping together or, in one memorable case, falling into a field of white lilies together. Inclusion in this list doesn't mean a wholesale recommendation, meaning some of these titles ARE problematic in one way or another. The lesbian couples in these shows are not always the protagonists; many are secondary characters, but are prominent enough to show up in multiple episodes (or are recurring characters). I don't add titles with the Bury Your Gay trope, which is why Yuri Kuma Arashi didn't make it.
Some of the titles included here I haven't actually watched but I added on recommendation.
