My advice for sliver:
Esthetics should be the last thing you worry about when it comes to choosing a dog.
Since you are worried about barking, drooling and shedding choose a breed or mix that doesn't come by that naturally.
You will love this dog no matter what it looks like so long as it doesn't annoy the #### out of you.
send this to your wife
https://www.akc.org/breed-selector-tool/