This is a somewhat lame suggestion but in the spirit of Pinboard/del.icio.us or Bluesky/Twitter, a well-supported copy of OG Friendster or Facebook could just work to some degree.

I don't use social media outside of old.reddit if that counts but would strongly consider something like this. It would be easy to describe to friends; my friends/family over 30 are nostalgic and those under 30, especially those living on their own now, are curious about alternatives to the current state of things.

thank you, yes this was my original plan and kind of the default plan