I have australorp chickens, Cornish Rex chickens, Rhode Island reds, barred rooks, one barred rock mixed hen, (don't know other breed) and I have some buff orpingtons I am pretty sure. So there are the breeds of chickens I have (I am pretty sure.)
Australorps are my favorite standard breed. I've raised them for years (along with dozens of other breeds) and they are extremely hardy, calm and gentle (my children, and now my granddaughter, made lap pets of them), and excellent layers of large, brown eggs. Good luck with your flock.