@ajroach42 I so deeply appreciated your thread on independent media curation/solidarity that I wanted to share something back. And since I've gone through dozens of CMS' over the past few years while trying to figure out what works best for online comics, I have a few weird curveballs I can share in case wikis don't work well for you (and it seems like they might!)
Since you're asking about how people move around the website, I'll focus on 3 info system type CMS':
First is Bookstack (https://www.bookstackapp.com/), which is a documentation CMS that is centered around categorizing things into a hierarchy type format (demo example: https://demo.bookstackapp.com/books/marketing-depertment/page/outbound-marketing-options). This might help people who use it feel like browsing through stacks of books and digging up something interesting.
Next is Typemill (https://typemill.net/), which is a CMS that lets users generate PDFs and ePubs directly. This could let people walk away with something to hold onto and feel like they're reading one single book. Otherwise it's more like a normal blog out of the box.
Third is more of an overall design approach that might be what you're looking for, which is often called "digital gardening" - where the explicit goal is for things to be as organic and non-linear as possible. I learned about it from Maggie Appleton, who has a huge list of resources about it (https://github.com/MaggieAppleton/digital-gardeners). This list includes guides for software from Tiddlywiki to Obsidian to Jekyll. This might help you achieve more of what you want with software you already like.
I hope any of this helps!