I'd also recommend Gitbook. They've improved their search features recently and I'd say they're on a similar level to Notion. We used it for our company wiki.

I'd also recommend Gitbook. They've improved their search features recently and I'd say they're on a similar level to Notion. We used it for our company wiki. Wanted to use Notion but for 500 users the Notion quote came out 15x more expensive so it was a no-brainer!