Try a NHR or RIR rooster and white rock hen. Or a White wyandotte rooster and a WR hen, Or a buff or white orpington rooster and a WR hen, Or just pure white rocks. If I was going to raise eating chickens and could just go one way I would use new hampshire roosters (early maturity) with white rock hens (big bird) and caponize the male offspring. I would want the older strain New Hampshires not the production strains.