I know amethyst has a marketplace

nostr:nprofile1qqs2xugc5jyguqkj36rk0syv4tmnkjdtmtperttl7x9rqjy3ustdcvcppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg6waehxw309aek2mnyd96zumn0wdnxcctjv5hxxmmd9uxa0uz8 nostr:nprofile1qqsfmd476kacwlqe920d9qrwazqrxpm3flwy85p2y3sj50qcexcvfmcpzfmhxue69uhhqatjwpkx2urpvuhx2ucpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgqgkwaehxw309ahx7um5wghrs6edd3skytnrdaksxfatgv closes thing that I know of

shopstr.store, cypher.space, and (soon) plebeian.market! Amethyst also has a built-in marketplace that already interoperates with both nostr:nprofile1qqs2xugc5jyguqkj36rk0syv4tmnkjdtmtperttl7x9rqjy3ustdcvcppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg6waehxw309aek2mnyd96zumn0wdnxcctjv5hxxmmd9uxa0uz8 and nostr:nprofile1qqsfmd476kacwlqe920d9qrwazqrxpm3flwy85p2y3sj50qcexcvfmcpzfmhxue69uhhqatjwpkx2urpvuhx2ucpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgqgkwaehxw309ahx7um5wghrs6edd3skytnrdaksxfatgv.

the thing that makes fb mktplace work is network effects. For a nostr mktplace to really get traction we need users