I have used a large wired dog crate.....and inside the coop I have used a smaller dog crate with the bottom removed for a broody who refused to be moved.....make sure theres plenty of water and feed and treats..sometimes I have to hand feed my broody because she would refuse to get up....I used the crates so the other chickens wouldn't bug her and also so they couldnt lay more eggs for her to lay on...also so the big girls wont hurt the babies once they hatch....