I have 1 golden Sebright rooster, he's very friendly and protecting my 4-5 months old Dutch bantams everyday.
he love them. Im getting a Silver Sebright soon. He's fesity guy, so i needed that to protecting my bantams flock. I have 7 Silkies, 6 SilkieXnankin, 3 Nankins, 1 Easter Egger X Nankin, 13 Dutch bantam, 1 golden Sebright and will getting a Silver seright soon. I have 6 roosters together, 1 sebright, 2 Nankin, 2 Silkie mix, and 1 Silver Dutch.
My Nankin roosters are TOP peck of flock.
from my experince with sebrights, they are easy to take care of. but you will need a Merek shots for them. I get that for mine done few months ago.