Yet, Parler is still up and running. Parler was created in answer to Twitter's discrimination against certain political views. MeWe was created to replace FB for the same reasons. MeWe is more popular than Parler and while it has political opinions you can follow, there are also cooking groups, comedy, and several places to promote books.
As far as authors go, there are few places to promote for free these days, so I take advantage of getting the word out anyway I can.
GETTR is new and freely allows promotion of businesses free of charge. That's where my interest lies. Sites that are geared to the Republican/Christian persuasion are my target audience since I write clean books.
To each his own, of course. These sites are clearly not loved by everyone.