Dynamic range! Not DOF Ha! I apologize for that. (I'm an idiot lol)
I really appreciate the advice! There's a couple of things I never thought of. To boil it down, I think the main things that become a hindrance to my photography are that the images can be a little soft at times. There seems to be a lack of sharpness that isn't out of this world but would like to improve. So that's a matter of better glass. I also like shooting when it's darker, and the noise can usually be fixed in Lightroom (again nothing out of this world) but better lowlight capability would always be nice. Especially for shooting into the stars.
So maybe Decent apps-c lens that's fast?
Before you jump into buying any gear please analyze your gear as well as your technical knowledge of photography.
Is your 24 f/2.8 sharp???? I'm quite pleased with the image quality it produces on my 80D.
You may possibly be having issues with AF due to the combination of your camera's calibration and lens calibration. This is where the 80D has micro AF adjust so you can tweak part of the camera's calibration so you can get tack sharp images.
Also watch your shutter speed and see if your having getting motion blur causing soft images.
Now you can see why there are benefits in shooting with mirrorless bodies. No tweaking of AF required.
My preference requires a camera body that has Micro adjust or simply using a mirrorless body.