Plebstr: https://plebstr.com/

Nostur (a bit rough around the edges): https://nostur.com/

As to getting started, it does take slightly more effort than many social networks, due to the nature of the platform (true censorship resistance comes with some unique challenges) and because we don’t have full UX design teams working fulltime on the clients like the big names do. That being said, it is getting easier.

This website gives excellent guides on getting started with a few clients: https://nostr.com/

I can also say that the #Damus team is working very hard on improving the onboarding experience right this minute.

❤️