peppered

Hi :) i have 2 albino and 2 peppered corys :D should i buy more peppered or more albino? They all school together so far and they all seem to like eachother :3 But the only problem is i have room for only 2 more before my tank is fully stocked, should i buy one more of each or 2 pepered or 2 albino?

I have peppered and Julii corydoras in a 120L tank aswell as a some Rummynose teras. I have recently found some yellow spherical objects which I assume are eggs, the peppered cories eggs. Somehow I'm not sure whether or not these eggs will survive. Any help would be greatly appreciated