Three of the aspects to look at that could make your life easier are:
- a tool that allows great UX for easy linking between documents / pages / folders
- the way the wiki is structured and how enforced this structure is
- rich options for embeds that you can integrate in your wiki
Easy linking / autocomplete of pages is really helpful to interlink your wiki and update old content at the same time. The better the UX, the less likely it is that people leave outdated information or documents that nobody checked for a long time.
Regarding structure - you could pick a system that enforces folders or a tree-like structure but both options have the problem of trying to fit all documents into categories. Something more flexible might help having an organized wiki without thinking about its structure. Saga (https://saga.so) solves this in an interesting way with collections (a mix of folders and tags) and page linking.