I have a Border Collie/Australian Shepherd mix and a Yorkie and they get along great. The herding breeds are very protective and motherly. They seem to be so patient and good with other dogs and kids.
My Yorkie seems to get along with most any other dog. He plays with Shih Tzus, Yorkies, Border Collie mixes, and even a Cattle Dog mix. Some breeds do tend to be more aggressive, though. They should research as much as possible about the breed temperments of the breeds they're interested in and just make sure they are well socialized and taught obedience.
The most important thing is early socialization. Getting them around other dogs, people, and different situations once they are vaccinated is key!
__________________  Lisa loves Harley  and Bella |