Make Sprites Visible through other Sprites (2d sprites in 3d world)

Hellow, i need some kind of post process/shader or what ever it needs the be, so i can see my “important” papersprites through other sprites like walls/bushes/trees etc.

but i have no clue how to do that. Is there any chance someone can help me out here with screenshots/tutorials or can someone build me something :S ?

Springarm collision test nor no collision test doesnt look that pretty in my world.