nostr:npub1yye4qu6qrgcsejghnl36wl5kvecsel0kxr0ass8ewtqc8gjykxkssdhmd0

This is a site that has direct links to many nostr projects -> https://www.nostrnet.work/.

Many are social media clients but some of them, like stemstr, are very different. There are alsto online marketplaces like https://plebeian.market/ where you can auction or direct sell products.

New uses for nostr protocol are being hacked on all the time and if you really want to see the scale of what's going on here is a list of projects and I'll bet it's still missing a ton of stuff -> https://github.com/aljazceru/awesome-nostr