@rain >post more about what your run, why you run it
I like xfce4 as it tends to actually work and the settings menu is somewhat convenient for selecting whether the touchpad on a laptop is tap to click, or what closing the lid does.

i3 tends to actually work too, although it requires additional configuration (which I do for computers that I use more).

>and maybe features you would enjoy having that you don't already.
I like windows being fullscreened automatically, which i3 offers and can be offered on xfce4 via devilspie2.

Every time I want more, I just look at the software list on; https://www.gnu.org/software/ and find another great program that I was missing.