Hmmm....well, I kinda need more info than 'good for people with allergies, doesn't bark, small in size, and needs to like strangers.' to be of more help.
What kind of activity level are you looking for?
What kind of trainability level?
Have you owned a dog before? If not, do you feel you could controll a more dominant dog like a Rottweiler?
How much grooming are you willing to do?
What age of kids will this dog come into contact with?
I'd stay away from the cock-a-poo and other poo and doodle "breeds". They are bred by Back Yard Breeders and since they don't have fixed genes, they can and most likely will shed. And hybrid vigor is nonsence.
So try to answer my questions and I'll see if I can help you out more.