We got our chicks from Meyers and our blue laced red wyandotte has been probably the quietest chicken I've ever had. She's also one of the least aerodynamic chickens I've had. She's easily one of my favorite hens, never picks on anyone and quick to accept the new introduction.
Meyer also has buckeyes, which have been hands down the friendliest, most personable breed I've ever owned (though mine have always been from breeders, I can't speak to Meyers' stock specifically)
It might also be worth trying a different color or source of orpington if you really like the look of the breed. My BLR wyandotte is sweet as can be, but years ago when we started we had a silver laced wyandotte who was the total opposite. She wasn't really a bully, but she was much pushier than my current wyandotte.