I have a couple of bantam cochin's they and silkies are known for being VERY broody. This chart will tell you other breeds....
http://www.ithaca.edu/staff/jhenderson/chooks/chooks.html
Welcome to your newest addiction. My name is Nadine & I will be your enabler as will everyone else on this board. The usual time to start chicks is in the spring, that way they can feather out (lose the baby feathers & grow their first real set) during the heat of the summer and have a good warm...