Awesome!! You will love them! I have 1 Barred Rock, 2 Black Australorps, 3 Buff Orpingtons, and 2 Easter Eggers. They are great! My Barred Rock and the Australorps can sometimes be bullies but they're very nice to me and my BR I think is one of my most personable and one of my smartest chickens. My Easter Eggers are a little flighty and one is lowest on the pecking order and victim of the most bullying, the other is somewhere in the middle, but I think that depends on the bird because others have said that their EEs are top birds. They are definitely more wary and cautious than other breeds though. And I find them to be gorgeous birds. They come in soooo many different colors, any color really, because they are mixes, so it is a lot of fun to watch them grow and see what they become. They change almost daily. They also lay beautiful eggs. One of mine lays a pretty greenish color and a medium size and was the first to lay at 22 weeks and laid pretty far into winter. Right now she is molting and not laying. My other laid beautiful HUGE blue eggs but she's being bullied and not laying atm

which brings up another point, be sure they have enough space. I hope she resumes laying in the new coop. The Orpingtons are very friendly birds and mine lay pretty well. 1 or 2 of them, my Barred Rock, and I think maybe an Australorp, are the only ones laying right now. My Buffs are a little bit stupid in terms of like finding the door back into the run when I let them out sometimes (other times they do) and will pace and pace and pace LOL BUT. They are very curious about me and very intuitive and smart in that way. They're also food hogs lol. They all vary in their rank in the pecking order. I don't have RIRs but I hear they are great birds too.
Anyway, sorry for rambling so much, I just love my birds LOL
Chickens are a lot of fun, you will love them!!! They all have such unique personalities and it is so much fun to watch them grow.
And you know, of course, that you must post pictures of them when you get them. It's the rules