There is no definite answer to the question of which dog is best for housekeeping, as different breeds and individuals have unique strengths and adaptations. When choosing a guard dog, there are several factors to consider, including the breed's size, temperament, alertness, loyalty and trainability.

Some common excellent guard dog breeds include German Shepherds, Rottweilers Dogs, Dobermans, etc. These breeds are typically highly alert and loyal, able to quickly detect and respond to potential threats. They are loyal to their owners, wary of strangers, and can perform their duties as housekeepers well.