The active communities for this niche, in 2026, with what they're good for.
RP / character cards
- SillyTavern Discord. Power-user technical RP community. Card craft, prompts, frontend.
- Chub.ai Discord. Marketplace + creators. Distribution + collaboration.
- JanitorAI subreddit + Discord. Mass-market RP audience.
- r/SillyTavernAI. Technical RP discussion.
AI companion / waifu
- r/AICompanions, r/AIRomance. Mainstream audience.
- r/MyBoyfriendIsAI. Vocal user community — useful intelligence on what users actually want.
- AICharacterCards Discord. Card-creator-oriented.
VTuber / virtual avatars
- r/VirtualYoutubers. General VTuber audience.
- r/AIVtuber. AI-driven specifically.
- VRoid Hub / Pixiv VRM communities. Avatar art + distribution.
- VRChat community. Avatar distribution as marketing.
AI builder / open-source
- HuggingFace Discord + forums. Models, adapters, datasets.
- LocalLLaMA on Reddit. Local LLM news + tooling.
- r/LocalLLaMA, r/MachineLearning. Mainstream.
- The Pile of LLM Discord servers (TheBloke, vLLM, etc.). Niche but knowledgeable.
Indie builders / creator economy
- Indie Hackers. Build-in-public + monetisation.
- Hacker News. Distribution + technical credibility.
- r/SaaS, r/SideProject. Builder audience.
- Microconf. Conference + community for bootstrapped SaaS.
Anime / cyberpunk aesthetic
- r/Cyberpunk, r/animenocontext, r/AnimeArt. Aesthetic alignment.
- /cyb/ adjacent forums — selectively. Tonally aligned audience exists.
Etiquette notes
- Read before you post. Each community has tonal rules.
- Don't drop links cold; build credibility first.
- Don't crosspost the same content to all of them.
- The waifu/companion subreddit communities are often emotionally raw — read posts seriously before replying.