How to make sure that assistants are placed in certain places when buying them in a 2D clicker?

Question

C++ / C#

I'm making a clicker with heroes and monsters and I want to make sure that when buying helper heroes, they are placed in a certain place on the screen. I do not know how to write it in the script, except to make their location on the screen random.
Here is my script:
{
GameObject hero = Instantiate(HeroPrefab) as GameObject;
Vector3 heroPos = new Vector3(
Random.Range(3.0f, 9.5f),
Random.Range(-5.39f, -5.39f),
0);
hero.transform.position = heroPos;
}

Answer 1

Make some empty GameObjects in advance, in those places where you need to respawn, create an array in the script and throw all GameObjects into it:
When using Instantiate, use a random element from the array:

GameObject hero = Instantiate(HeroPrefab, SpawnPoints[new Random().Next(0, SpawnPoints.Length)].position, Quaternion.identity);