I've used many of them. Then I was very intrigued by Obsidian. But after that, I've found the best one for MY purposes -- and that's Logseq.

Logseq is very much like Obsidian, but I like that it is fully open source. I also especially like outline structure of the notes, to go along with the default journal entry dates. It serves me well for what I need it to do (including taking notes on podcasts and sermons, recording ideas, and outlining my thoughts for writing blog posts).