SQL playground - Create a private PostgreSQL database with a predefined structure & test data in the shortest time.
PlanetScale - The last database you'll ever need. Go from idea to IPO.
Google Cloud PostgreSQL - Fully-managed database service
Hightouch Audiences - Use data without SQL
Supabase - An open source Firebase alternative
Hasura - Hasura is an open platform to build scalable app backends, offering a built-in database, search, user-management and more.