I used to raise Scotch Collies and they can be a bit timid.
They certainly make good family dogs tho.
I also raised Shelties (Shetland Sheepdogs), you might look into them.
The are just like a Scotch Collie, only much smaller...
I always called them a 'big little dog' because they
act more like a big dog than a little one...as far
as being yappy goes. I really enjoyed both breeds.
Golden Retrievers are known for being good family/kids
dogs, but I don't know how they'd do with chickens.