Atmo
Open-source events platform built on the AT Protocol for creating, discovering, and RSVPing to events with data stored on your own PDS
Atmo is an alternative to
Eventbrite
Eventbrite is a platform for creating, sharing, and discovering events.
Meetup
Meetup is a platform for finding and building local communities and events.
Facebook Events
Facebook Events is a feature for discovering and creating local events on Facebook.