This is a bit of a plug, but my wife is CMO of a Swedish company,
IDKA, which is kind of like FB combined with Slack.
You have chat, video chat, and lots of (free and easy to organize) storage! Freemium business model and it is in Beta now, so everything is free, likely until next year. While it is a "social network" you are NOT the product. There is no data harvesting/scraping, and nothing is sold or used by 3rd parties. And no ads.
The biggest difference from FB is there are not millions/billions of people to engage with at the moment you join. Ideally, you bring your own groups to the platform; families, clubs, work groups, entire companies. And of course, Mark doesn't track your phone, or build a detailed profile about your life/habits!
Check it out! Feel free to PM me if you have questions. You can sign up/register directly on the site. My Wife was on EF, but we left CH 7 yrs ago and she is no longer active here.
fduvall