I have Australorps, Barred Rocks, Welsummers, Buff Orpingtons and EEs. Based on my experience and your specified needs, I would recommend giving Australorps and Buff Orpingtons a try. I've raised all from eggs I've hatched and from day old from Meyer hatchery and done research on breed characteristics and my experience with Barred Rocks is that they are extremely social among themselves but not so much with humans, not aggressive, just don't want to be messed with/touched. Welsummers are great birds but don't lay as well as Australorps and Orpingtons and are also people shy.