I'm a fan of WikiJS. Though I havent personally gone through setting it up, the last two web projects I worked on used it. I found the UI intuitive and easy to use. I loved being able to updates either in a code editor or in the browser UI.
That being said, there is room for improvement. Image handling is not great, and a lot of the components feel simplistic and could be fleshed out (permissions, indexing/search). Dead simple to set up though, especially with Docker-compose.