In world progress bar on hexagons in grid

Hi guys, I have a problem in Unity. I want to create a progress bar at in world object - hex. You can see the hexes at the image attached. There are many hexes in my scene (about 100). I want to the hex be filled with certain sprite depending on progress of construction (or I can have a progress bar somewhere inside hex). The idea is very similar to health bar and progress bars you can find in UI. I tried to find solution, but all end up in UI elements and raycasting of camera & rotation of the element toward it. Can it be done in the world space? What keywords I should use to find it It looks like this: https://drive.google.com/file/d/1lze0uJAN7XnU4zKvDCQrMNax4W4pB_VL/view?usp=sharing

PS. sorry I cannot upload image here - there is an error, just posted it to Google Drive