@scottnesbitt @switchingsocial found that site some time ago and it's nice.

If you accept suggestions, I miss a deeper note about !xmpp clients as alternatives to Whatsapp, Telegram,.. (*)
IMHO at the first place.

And, sorry but I would not call 'ethical' to Signal because they don't want to federate and you need Google services to use it.

(*) https://switching.social/ethical-alternatives-to-whatsapp-and-skype/