How to make game objects completley solid?

Hey guys, in my 2D game I made my sprites have a box collider and a ridgid body 2d, but my player object can still kind of try to squeeze in halfway into the center of the the other sprites which are solid, but still have wiggle room. What is the best say to make my sprites completely solid?

Thanks in advance!

Try to make the movement code of your character in FixedUpdate and not Update

Make sure first that colliders are not triggered and all sprites have one