Mesh Vertices – loop through all on mesh

https://docs.unity3d.com/ScriptReference/Mesh-vertices.html

Place gameobject on each verticy.

Copy gameobject and place
https://docs.unity3d.com/ScriptReference/Object.Instantiate.html?from=MonoBehaviour&_ga=2.196106476.1535054302.1590040251-320145947.1586752548

Instantiate prefab at vertices
https://answers.unity.com/questions/854656/instantiating-things-at-vertices-points.html