Living in N TX, we still deal with summer temps over 100 most of the summer. I really like my Naked Necks, and the can handle a wide swing of temperatures. They are easy going, friendly and I understand lay 4-5 eggs a week. They are good with confinement.
Same with Easter Eggers, I have 2 from last year and 5 more from this falls order of chicks. They aren't going nuts and they are living in the garage in the run that will be attached to the coop, 24 sq ft. I am nearly done with the coop, maybe today it will be done. Other than molting, I got 2 eggs a day from 3 pullets all of last year until one died from heat (Blackie and Goldie went in the coop, and it was stiffling in there and I found them w/ heat exhaustion, could only revive the Speckled Sussex.)
Speckled Sussex do pretty well in confinement, and again lay 5-6 days a week.
I clipped wings last year when Blackie flew over my 6 ft garden fence, I put them there while moving their new coop. Once I clipped wings, I have only had to redo it once and they don't think they can fly. I keep them in a yard with a 4" electric fence that I never turn on. I suspect I will be clipping the NN wings, but it isn't hard to do.
Heavy birds and heavily feathered birds suffer from heat. I lost 2 Marans and one EE that was heavily feathered.