Man, back when I was really deep into that specific blend of neon and chrome, I actually found the best stuff in weird corners, not the obvious hubs. Everyone shouts about Archive of Our Own, and yeah, it's a powerhouse with tags that let you drill down to 'cyberpunk AU' or 'cybernetics' on any fandom. But the real texture, the stuff that feels like it's got grime under its fingernails? I stumbled onto that on forums for older games and media. Places dedicated to 'Deus Ex' or 'Shadowrun' tabletop RPGs often have subforums where people post these incredible, sprawling story continuations. They're less polished sometimes, but the world-building feels lived-in because the writers are obsessed with the source lore. Dreamwidth communities, surprisingly, still host some amazing, niche cyberpunk-themed kink memes and prompt fills that never migrate to the bigger archives.
Then you've got the question of whether you want canon-based fic or original cyberpunk worlds. For original stuff, sites like Scribophile or even the writing sections of certain subreddits can yield gems if you're willing to sift. Wattpad has a ton of cyberpunk romance, but you have to filter hard for quality; the algorithm pushes popular tropes over atmospheric consistency. My contrarian take? Don't sleep on FF.net. Its search is a nightmare, but if you find an author who wrote a great 'Cyberpunk 2077' fic, their profile might link to a personal site or blog with even more experimental work. The platform feels retro, which oddly fits the genre's often-dystopic, decaying-tech vibe. Finding good fic is less about one perfect platform and more about following a trail of links from a story you love, seeing where that author bookmarks their own favorites.