I don't really know if there's such a thing as a "pure" breed of any bee. I can say they can be mostly one breed or another. I would also say Italians. Just for the gentleness factor. I like to sit next to the entrances of my hives and the select bred bees will follow me around the area and light on me thinking there's food involved. Sitting in front of the computer with the window open they fly in and look me over, when it's hot, they drink my sweat.
Ask at your local beekeeping club. You will probably find someone who has bees that are acclimated to the climate, are selected for gentleness, as well as for productivity.