What are the analogues of Landing-CMS with the ability to create fields?

Question

CMS

Hello. There is such a CMS https://github.com/Elias-Black/Landing-CMS . It is already outdated (when trying to install, it works with errors, and there are vulnerabilities in the modules). Please let me know if there is such a CMS. I need the minimum:

• creating fields
  
• filling in these fields
  
• selection from fields
  
• file or regular database - it doesn't matter.
  

Answer 1

Flextype ( https://flextype.org )
has the ability to create an unlimited number of fields, populate those fields, and make selections. DB File.