Welcome to BYC. I'm going to say brahma because of the comb (looks like it may be a pea comb) and the lightly feathered legs (cochins are heavily feathered) and the skin tone. You should be able to identify the breed for certain by 4 weeks. Congratulations on your new chicks!
and Welcome to Backyard Chickens.
to have you here with us. Enjoy your time here at BYC!
We're glad you're here!