How to give the ability to create pages for the site in the constructor?

Question

CMS

There is a website, front on react, back on asp.net core. The site has various articles. We need functionality when the page of each article could be designed, as is done in various constructors (readymag, for example). How can this functionality be added to the site? Don't write your own constructor

Answer 1

add an editor like tinymce or ckeditor and that's it