Welcome to YT, I cannot help neither, for I too have 4 barkers,
if one barks at a dog going down the street, they all come on the run to yip also.
I just keep saying quiet and they are not too bad but under control all the time, in other words my hubby or myself are on the porch with them,
it is not too big, so easier to control, but let a stranger walk up
to the door, we know someone is coming.
I love that about the yorkies. pooh's mum