I've been using TrilliumNext (fork of Trillium project that is archived) and haven't been able to find an alternative I liked more. Only thing I don't really like is that it's not really stored in Markdown and since you have the ability to have notes in multiple trees it can get a bit messy when trying to move to other systems.

I tried moving to Obsidian Notes and found myself missing Trillium. It's nice to be able to just open the web browser and have access to your own self-hosted notes with an editor anywhere. You also can set it up so if you add a sharing tag to a note you can easily share a link to the note. I believe Obsidian allows similar but only if you pay, and it's also not self-hosted.

I've tried a wiki style approach before like Tiddlywiki, but I feel like it is a whole different concept of taking and making notes that often is a bit more cumbersome, but maybe it works better with how some people think.