what is the best breed of chicken to keep and sell?

[golden campine]

Ok so im thinking of getting 5 hens and 1 rooster.I want to keep them as pets and sell there chicks.So I was wondering whats the best breed after silkies to keep and sell?Or should i cross breed?I wass thinking about geting to different types of roosters and hens.But I want your advice.thanks.and also is my pet chiken a good hachery.