As for MeWe, that's a brand new service, I just signed up (It's $4.99 a month after 1 free month) but promises to avoid the obvious issues with services such as facebook, twitter, google, etc.
It's too early to tell its worth or whether they will live up to the promise, but the claim is they are working for the users rather than the advertisers, which is what I need. No one else is making that claim.
Have you heard about Caucus Room? It’s supposed to be a conservative alternative to FB.
I’d never heard of it, but someone asked me about it, earlier today.
The platform looks user friendly (they have screen grabs in homepage), but, I have never been on FB or MeWe.
I signed up for Clouthub, but not really liking that one.