Ball with sphere collider is hovering, how do I keep the collider and place the ball on the ground?

So I have my "player" which is a ball in this case. I have a sphere collider to add items to a list, without the ball having to touch them.

 private List<GameObject> ReachableObjects = new List<GameObject>();
 
 SphereCollider checkObjects = objectChecker.GetComponent<SphereCollider>();

 public void OnTriggerEnter(Collider objectList){
     ReachableObjects.Add(objectList.gameObject);

(The code is probably irrelevant)

This makes my ball hover since the sphere collider is larger than the ball. I tried using the circle collider for 2D, but that can't be rotated to a horizontal collider around the ball, which is pretty much what I need.

How can I keep this collider effect and get rid of the hover of the player object?