Individual pictures showing leg colors and combs may help. Guesses are new Hampshire, blue Orpington, or australorp, a Columbian Wyandotte, maybe a blue Andalusian?
Wife picked them up from an individual hatchery guy...she said she thinks she bought " blue austrolorp, blue copper Maran, buff orphington, and Delaware...
I was just asking to see if she got bamboozled...no worries...lol