Plymouth Rock or Australorp seem to get along w everyone in my flock but aren’t bullies! Wyandotte tend to stick together but get along w everyone as well (& are very pretty!)
I really want a lemon cuckoo niedderheiner but they don’t sell just pullets that I’ve found. Also looking at brambanters. Have you hear anything about either? I don’t know much about bantams except the Mille fleur ones are gorgeous. Lol