How to share an object to other scripts

I'm trying to inject(DI) an object to a bunch of other scripts without doing statically, is there a way to do that?

For example:

 public class InitGame : MonoBehaviour {
 
 
     void Start() {
        TileMape tileMap = ...
     }
 }

 public class AnotherScript : MonoBehaviour {
 
     public TileMap tileMap;
     void AnotherScript (TileMap injectedTileMap): base() {
            
        tileMap = injectedTileMap;
        tileMap.DoStuff();
     }
 }

How can I do something like this without making the TileMap instance static or using the singleton design pattern?