Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
PodKoi - Find podcasts to be interviewed on & guests to interview.
Iventlist - Create an app for your event in minutes 🎟️
PodBooker - The easiest way to get booked on podcasts
sched - Event management software
Speaker Directory by HeySummit - Guests for your next event or podcast (or submit yourself!)