We don't have marketplace or events *yet* but I'd love to tell you more about Ditto if you have a specific community of people you want to move here!

The main community function is the self-service NIP-05 username feature, which allows people to all get a username on the same domain (ex. user@mybtccommunity.com)

Then Ditto displays a local feed of everyone from that community to encourage interaction with each other while also allowing them to connect to the boarder nostr network.