Pit Bulls
Rottweilers
American Staffordshire Terriers
Doberman Pinschers
Boxers
German Shepherds
Great Danes
Akitas
Chow Chows
Alaskan Malamutes
Siberian Huskies
Wolf-hybrids
Perro de Presa Canarios.
Any dog that has any of the above breeds in their lineage


Here's a list of the dogs.