Also found in a !fedibridge@lemmy.dbzer0.com post by @biltong@piefed.co.za : https://piefed.co.za/c/fedibridge/p/22233/post-on-r-buyfromeu-on-the-recent-surge-of-users-to-piefed
I like the way Voyager does it:

DeltaChat also has a very easy onboarding process: you just put your name, and that’s it. The app creates the password in the background and allows you to switch servers easily. That really helps with onboarding new joiners.
Piefed.zip could be a nice default choice. If there are others you see, feel free to suggest.


I don’t like the idea of a default server, because someday it will be the wrong one.
Much like recommending Linux I’m sure to specify “Linux Mint” and when I recommend XMPP I’m sure to specify jabber.org.
But it sounds like we could just be pointing newbies to Voyager or Piefed for awhile? I like various apps having a default, because we can always start recommending different app, if there’s issues.