I’m looking for something that will work like overlapsphere, but the shape is a square. I checked out OverlapArea but i believe it wasn’t following the GroundCheck gameobject as my groundcheck bool was always true no matter where the player was, and OnCollisionEnter2D began to get too messy.
Physics2D.OverlapArea is indeed what you want to use. Are you sure you were using the arguments correctly. There are no known reported problems with this call.