The lazy answer is whatever option you can migrate your friends and family to that:
- Is as private as possible (E2E encryption is a plus)
- Ideally hosted by one or many of you
- and is still interopable with other systems
I like ZeroNet but it's really hard to bring people there I kinda see it as the "Nuclear Option" for when things get worse than they are now.
This site actually has a matrix instance which actually helps things a lot. Ideally you would have a separate instance/account for shitposting and talking with your friends.
Activitypub is cool but ironically is very SJ dominated, there are other instances (Technically Gab is one, but I don't like how they handle Chat and other features)
I think someone here already brought up delta chat which is probably the easiest to get people to use, but right now Matrix is my jam.