Doberman dogs are sleek and vigilant guard dogs Koljambus/Getty Images The Doberman Pinscher is a powerful, loyal and fearless breed of dog. They are also affectionate and good with young children ...

American Kennel Club lists several good guard dog breeds including Bullmastiff, Doberman Pinscher, Akita, German Shepherd, Staffordshire Bull Terrier and more. Each breed has different desirable ...