Payload CMS - Headless CMS and Application Framework built with Node.js, React and MongoDB
Alcamy - Free, open self-learning platform. Learn & teach anything.
DatoCMS - Connect DatoCMS to your favorite site generator, build the perfect backend and deploy anywhere you like.
Stacks - A bookshelf for your online courses
Flamelink.io - Flamelink.io is a headless CMS for Firebase.
Airschool - Airschool is a live-streaming educational platform with engagement and monetization tools to help anyone start teaching online. It can be finance, business, wellness, meditation, branding, marketing; in short, anything you want!