Cochins are not quite as productive, in general, as the other breeds and they tend to go broody much more than the ones I listed. In fact, among the ones I listed, only Buff Orps really have much broody tendencies and with hatchery stock these days, some of that has been bred out of most of them. If you want a broody, then a Cochin or two would be good. If you like Cochins alot, by all means, include a couple in your list. You should enjoy the ones you get, not just aim for egg production, but if production is halfway important to you, then the ones I listed will do the job.