This might get me side-eyed, but I don’t go looking specifically for that moment. I don't trust the tags. So many fics advertise a big Dramione or Drarry kiss and it's either a peck on the cheek or happens in the last paragraph after 80k of political intrigue. Ruins my whole week. I search by the 'First Kiss' or 'Getting Together' tags on AO3, sort by kudos, and then I skim the comments. If readers are screaming in all caps about chapter 12, that's the one. The actual scene location is a spoiler, but that's the point. I want the slow burn that actually delivers, not just a tagged checkbox.
I've had more luck with older, completed fics on fanfiction.net sometimes, weirdly. The summaries are less algorithmic. Phrases like 'a truce gone wrong' or 'detention takes a turn' used to signal it. Now everything's tagged to death, and the kiss feels like a contractual obligation. Give me the messy, accidentally-on-purpose stuff from 2008 where they're covered in potion ingredients or something.