If you have a hatchery order magazine laying around you could use that. Murray McMurray Hatchery magazine is really good. It shows both young and old. Otherwise post the pics and people here are really good at figuring out breeds.
I'll go take pictures right now. I was told that 3 are Auracanas, 2 were Bantams and the other two were orpingtons. But they didn't know what kind of Bantams and Orpingtons they were.