Whatever you find will vary within the spectrum of canine behavior. Badly socialized, poorly bred, weak nerves exist in all breeds but if I had to pick breeds that tended to be social soundness (neutral or better) minus true DA I would pick these:
Not a terrier
Not a working breed unless a spitz w/o a guarding history
I would also probably stay out of the herding group
So the breeds that come to mind for me are huskies, sammies, retrievers, beagles, bassets, shibas, papillons, frenchies, pekes, cavaliers, greyhounds, poodles, bichons, and clumbers.