Orpingtons are the very best chickens out there. Just sayin.
You should think about what you intend to do with your chickens...are they for eggs? Maybe a prolific layer is what you want, leghorn or golden comet. Are you going to eat your extra cockerels after hatch? ~then look at breeds that bulk up quickly. If you're interested in a beautiful egg basket, Marans are a good breed to mix in with EEs, you get the dark chocolate brown eggs and can use your Marans cockerel to cover your EE and make Olive Eggers. If you intend to show, contact someone who shows so you can get a good start. If you're delighted with the breeds you have, possibly adding another variety is what is best for you. Good luck!