Thank you for mentioning org-mode. I was actually finding a good set-up. You're comment leads me to this blog[0] that I end-up following this set-up which is quite very simple.
On the other hand, I recently saw a lot of Zettelkasten articles. I'm not sure if its been hyped but I still would like to give it a try. When I found emacs, I gave it a try (it was hard) and eventually I begin to like it because of its tons of features. When I found org-mode, I gave it a try and then I like it and use it everyday. When I found org-babel, I gave it a try and then I like it. When ... ... ...
I hope more people would like to try emacs and org-mode. I know: learning at first is pretty hard. My advise it just to use it everyday. I remember I uninstalled notepad++ from my PC in order to force my self to use emacs. It took a month for my brain to be comfortable using emacs.