What are the engines for creating Q&A (Knowledge Base)?

Question

CMS

Comrades!
I want to get confused over the creation of a local database "Questions and Answers" in the company. So that you can go in, read, find the answer to the right question: instructions in pictures, etc.
What are the options besides MediaWiki?
PS Of course, no external services, everything must be locally deployed on servers.

Answer 1

We use this KBPublisher https://www.kbpublisher.com/

Answer 2

Right now I 'm installing w3schools.ru

Answer 3

Try helperfy.com , we developed it for ourselves, now we are starting to offer it on the market. Lots of Q&A features, including a support chat to your site that links to the base itself.