We stay and fight on Twitter. We will outlast the narcissists/crazies. However, also good to have alternatives. So far I have been using Mastodon and http://post.news which is in beta testing & has a waitlist that goes quickly.
Post News

Access journalism from premium publishers without subscriptions or ads. Discover, follow, and connect with diverse voices on topics you care about.

Post News
There is a waitlist for http://post.news bc it is still a new app in testing (though it looks very good to me right now). That being said I do not expect the wait to be long at all. Thousands have already been invited on, more everyday.
Post News

Access journalism from premium publishers without subscriptions or ads. Discover, follow, and connect with diverse voices on topics you care about.

Post News
@richsignorelli I have my invite, but I’m holding off during the beta testing period.
@CharJTF I decided to take the plunge after all. Post is functional, but has some quirks.

@socalvillaguy I'm one of 4000 who got the invitation but haven't used it yet.

Maybe I'll try it this weekend.