I will start this post off by saying, this is simply a link which I want to keep because it is fair to say, an awesome list. I have been looking for a self hosted wiki for my raspberry pi, and stumbled across this on a reddit thread.
https://github.com/awesome-selfhosted/awesome-selfhosted#wikis
There must be 50 different categories and possibly thousands of options for software in this list and it looks like it’s being maintained.