See this:

https://en.m.wikipedia.org/wiki/Comparison_of_wiki_software

What is best will depend on your exact needs. Which media formats? Do you need change history? How do you want the text stored? How long will you use it at max? Will it be used by other people? Does it need access over internet, requiring authentication?

Zim is already mentioned, it might be quite good for what you described. Being a desktop apo, it is quicker to access than a local web app. One which can be hosted local but is web-based and quite nice is Gollum. DokuWiki is more heavyweight (and perhaps more difficult to install) but has many features good for organizations.

Another one which has high performance as well as very powerful features for content organization, interlinking and so in, is CLiki, a Wiki in Common Lisp: https://www.cliki.net/ , see also https://en.m.wikipedia.org/wiki/CLiki .

The pandoc program can export/convert quite a few wiki markup formats to other documents, like LaTeX or PDF.

Because Wikis are often used for long term information storage where "long term" might mean 10 to 30 years, stability of the software and data being stored in readily accessible formats is probably important. As an example, there exists a nice Wiki software called MoinMoinWiki with many good features, but it was written in Python 2 and the developers did not have the time to port it, so it is likely advisable not to use it any more. Some languages have definitely more churn than others (with Common Lisp being on the extremely stable end).