I have Australorps but can't really help; only one is mature, and she does not go broody. The others are 14 weeks; we will see. But I did choose all my breeds (except the leghorns) in the hope that at least some would go broody.
BTW, my Kraienkoppe is now sitting on 10 hatching eggs I mail ordered, as I don't have a mature roo at the moment. But I want to do the same thing you do. They don't usually care whose eggs they set. People even cross species, like hatch ducks under chickens, etc. My Kraienkoppe came from...
Here's a good article on this:
http://www.themodernhomestead.us/article/Broody-Hens-1.html
Probably most commonly used are OEGB and silkies.
But you can get a few good broodies from several other breeds, esp. if you can buy from good breeders rather than hatcheries. Henderson's breed chart...