We live in the suburbs (our lot is 100 x 55 feet with neighbors all around) and we have 6 hens. Our Ameraucana (Easter Egger) is not any more vocal than the others, really. They all have their loud moments!!!
Our favorite is our Black Australorp. She is absolutely beautiful, calm, friendly, and lays tons of lovely eggs. Australorps are descended from Orpingtons. We have: Red Sex Link (red star type), Buff Orpington, Silver Laced Wyandotte, Easter Egger ("Ameraucana" from a hatchery), Australorp, Barred Rock. We love our Wyandotte as well. Personally I think that temperament is more due to the individuals, although I understand that some breeds lean towards docileness or flightiness more than others. We picked all calm, friendly breeds.
If you haven't built your run yet, I would advise building it bigger. Your situation sounds similar to ours. We let our girls free range only when we're watching them, so maybe 2-4 hours in the summer and .5-1 hour in winter. We have 6 and our run is 66 sq feet.... and I really think that they'd be happier if it were larger (we had soem pecking issues this winter). If you get 5 standard-sized chickens your run would be just the minimum size. My guess is that you'll love them so much you'll get more next year (especially if your town does not have a limit!) and then the run will be too small.
Oh, but if you get bantams/silkies then the space is probably fine. You just won't get as big of eggs. Boy do we LOOOOVE our fresh eggs!!!
Anyway, good luck and have FUN!!!
Stacey & Olivia