What?! No one else said anything about them! Pekin bantams look fairly similar to cochin bantams, in which case PEKIN BANTAMS! AS WELL AS D'UCCLES! AND SILKIES! ALL OF THEM!
I have also found that d'Uccles seem to get picked on, depending on their age, I have a 3 year old one who is higher in the pecking order than my roo, but a 1/2 year old who is down at the bottom. Silkies are also very good birds, but 2 of an breed often works best.