I know of a content provider who's on Nostr. Goes by Brainpod.. You can see him on Rumble. He's a blogger with many many videos, and has posted to Nostr. He says he never sees his posts, and honestly, I can't seem to search and find him.. Maybe I don't know how to use the search feature or something. There is content out there. How does it get publicized might be the question?