Utilizing the heightmap in conjunction with a parallax occlusion system like MrRolord's on Gumroad has resulted in outstanding results! 5/5.
What is that? I want to see it=) Something like tessellation?
I don't know the technical details, but basically it gives you the same visual result as "Adaptive Subdivision" in Cycles, but works in EEVEE and is super lightweight on ressources :)