The Editor Recommendations Project
This project aims to solve a few problems currently faced by both editor developers and implementers who want to introduce content editing into their systems.
Check the project website for further details: https://ckeditor.github.io/editor-recommendations/
Although the project was created by the CKEditor team and is intended to help in CKEditor 5 development, it is being written in an editor-neutral way and other projects can certainly benefit from it, too.
If you care about providing proper tools that will foster creating quality content, you are most welcome to participate!