Meyer Hatchery sells chicks with only a limit of three. Same with my pet chicken ( i think they sell sexed bantams) It will cost you more though check them out. They are done for the season but they should pick back up later.
I bought 6 chicks from one of my local feed stores. They told me that the were all girls. They were right. I have 6 RIR's. All are doing well. I live in Florida.