Feedback Physics2D.OverlapCircleAll showing the box created for debugging purposes

I am currently going to use the Physics2D.OverlapCircleAll command to check if my character is on the ground using a LayerMask. and I am wondering how I would show the circle created for debugging, would I need to use a line renderer or there is an attribute I am not using. Any help is much appreciated.

Current relevant code:

Code (CSharp):

1. using UnityEngine;
2.  
3. public class Player : MonoBehaviour
4. {
5.     //  Grounded tools
6.     [SerializeField] [Tooltip("Position to spawn circle cast.")] private Transform m_GroundCheckPosition;
7.     [SerializeField] [Tooltip("Layer mask to determine what is ground.")] private LayerMask m_WhatIsGround;
8.     const float k_GroundedRadius = 0.2f;    // Radius of the overlap circle to determine if grounded.
9.     private bool m_Grounded;                // Whether or not the player is grounded.
10.  
11.     private Rigidbody2D m_Rigidbody2D;
12.     private Vector3 velocity = Vector3.zero;
13.  
14.     private void Awake()
15.     {
16.         m_Rigidbody2D = GetComponent<Rigidbody2D>();
17.     }
18.  
19.     private void FixedUpdate()
20.     {
21.         m_Grounded = CheckSphere(m_GroundCheckPosition, k_GroundedRadius, m_WhatIsGround);      //  Checking if the player is on ground.
22.     }
23.  
24.     private bool CheckSphere(Transform CheckPosition, float CheckRadius, LayerMask CheckingFor)
25.     {
26.         bool result;
27.         result = false;
28.  
29.         Collider2D[] colliders = Physics2D.OverlapCircleAll(CheckPosition.position, CheckRadius, CheckingFor);
30.         for (int i = 0; i < colliders.Length; i++)
31.         {
32.             if (colliders[i].gameObject != gameObject)
33.                 result = true;
34.         }
35.  
36.         return result;
37.     }
38. }
39.  
40.