Some #Friendica screenshots to give an idea of what it's like to use.
It features a familiar #Facebook-style timeline in the middle, an FB-style events system, and there's also groups (sort of).
If people want to switch from Facebook, this could be a really nice alternative for them once #ActivityPub is added.
It also works as a feed reader, you can "friend" RSS addresses and they then appear in your timeline as if they were users.