Simple website approach using a Headless CMS – Guide
https://www.appnovation.com/blog/simple-website-approach-using-headless-cms-part-1
https://www.appnovation.com/blog/simple-website-approach-using-headless-cms-part-2
https://www.appnovation.com/blog/simple-website-approach-using-headless-cms-part-3
Strapi – the leading open-source headless CMS. It’s 100% Javascript, fully customizable and developer-first. [open source, Self-hosted, RESTful and GraphQL]
https://strapi.io/
Headless CMS – A List of Content Management Systems for Jamstack Sites
https://headlesscms.org/
Ghost – an open source, professional publishing platform built on a modern Node.js technology stack
https://headlesscms.org/projects/ghost/
https://github.com/TryGhost/Ghost
https://ghost.org/