What is the optimal set of WP plugins for creating a corp. knowledge bases with division of access rights by categories?

Question

Knowledge base

I looked through the questions on creating knowledge bases and intranets here and I see very few answers with a wordpress recommendation. Although, in my opinion, this is an ideal solution for a small company (if you do not need to automate processes). Can someone convince me?
What modules are better to use for 1) complete closure of public access to WP; 2) sharing access to different categories/types of materials for different roles; 3) displaying a hierarchical tree of materials in the side column.
I see it this way. When clicking on any link, the user is redirected to the authorization form. After entering, redirect to the material at the link. On the main page - the news feed of the company. In the side column is a tree with links to materials. Moreover, the user sees links only to the materials available to him.
Add. posting question. Has anyone tested https://github.com/systemo-biz/casepress - call themselves knowledge base on WP. What do you think?
Thank you in advance.

Answer 1

https://wordpress.org/plugins/wp-knowledgebase/
athemes.com/collections/best-knowledge-base-wiki-w...
And a series of tutorials:
code.tutsplus.com/tutorials/planning-a-wordpress- k...

Answer 2

Better Confluence, XWiki, MediaWiki.
For Confluence, a set of built-in plugins is very good value for money - and everything is quite inexpensive, if not free.

Answer 3

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