Just chipping in to say I just deleted my .ssb folder & haven't got a functional back up (I'll write about that in a separate post).

I ran through the canonical guide: https://github.com/ssbc/patchwork which links out to listed pubs here: https://github.com/ssbc/scuttlebot/wiki/Pub-Servers

The only pub which worked was:

ssb.ekata.social, run by @mashiweirk and Base48 Hackerspace