Are there ready-made CMS/web platforms for creating a medium-sized information and reference system?

Question

CMS

Are there ready-made CMS/web platforms for creating a medium-sized information and reference system? Such that they already have implemented user tools for accessing information and tools for creating a structured database of materials and documents?

Answer 1

Confluence

Answer 2

If for internal use, then Confluence and Notion are not suitable, quite. You can share some files.
I won’t recommend Yandex Wiki, they say that the project seems to be frozen :)