You can download this free unity asset to create a procedural 3d grid and create spheres on each point and finally change the sphere radius by defining a point attractor Download for free
In this Grasshopper tutorial for beginners you will learn how to make a series of Voronoi cells inside a rectangle by relaxing the cells with the Kangraoo plugin. Free Tutorial
You can download this free unity asset to create a series of procedural spheres around a circle. The radius of the spheres change based on a sine function. Download for Free