I've gotten chickens in the past from the local farm co-op (feed store) but haven't been happy with that.
This year I ordered 15 Red Bourbon Turkeys, 8 Joe Pye Game fowl, and 18 Black Jersey Giant chickens (2 roosters) from McMurray hatcheries. I've had pretty good luck getting birds from them in the past. They usually send an extra of each breed and then throw in a fancy chicken to boot.