Converting Collider to Bounds variable?

I apparently suck at coding C#, I have absolutely no idea where to even start with fixing this error. I have an idea of what it is, but I don't know what variables I need to put in the middle for it to work. Here is my script:

 using UnityEngine;
 using System.Collections;
 
 public class AfterInstantiation : MonoBehaviour {
     private GameObject control;
     private GameManager manager;
     private bool overlapping = true;
     private GameObject overlapper;
     private Bounds bounds1;
     private Collider[] hitColliders;
     private Bounds bounds2;
 
     void Start(){
         overlapper = GameObject.FindGameObjectWithTag("ground");
         bounds1 = gameObject.renderer.bounds;
         hitColliders = Physics.OverlapSphere(transform.position, 2);
         bounds2 = hitColliders;
 
 
         if (!bounds1.Intersects (bounds2)){
             Debug.Log ("Destroying " + gameObject);
             Destroy (gameObject);
         }
 
         else {
             MarkAsInstantiated ();
         }
         
     }
 
     void MarkAsInstantiated(){
         control = GameObject.FindGameObjectWithTag ("Manager");
         manager = control.GetComponent <GameManager> ();
         GameManager.dungeonsExisting += 1;
     }
 }

I am trying to get the object to delete itself if it spawns on top of another object, so I want to draw an OverlapSphere to check if the object is hitting another object, and if it is, I want to delete it. So here is the error I be getting on line 17:

Assets/Scripts/Level Generators/Corridors and Rooms/AfterInstantiation.cs(17,17): error CS0029: Cannot implicitly convert type UnityEngine.Collider[]' to UnityEngine.Bounds'

I have no idea how to even start trying to fix this error, though it's probably something obvious. Any ideas? Help is much appreciated.

Edit:

If anybody could tell me how to convert hitColliders into all the gameObjects that it hits, I could also go from there.