8.Rhodesian Ridgebacks - Ridgebacks are loyal and natural watchdogs. They are selective in their barking so when a Ridgeback barks, it needs to be taken seriously.
7. Dogo Argentino - They are very loyal to their owners. Its white coat is quite short, plain and smooth.
6. Staffordshire Terrier - After a good training and proper socializing they will become a good guard dog, their aggressive and protective natures is what makes them good at it.
5. Kuvasz - It is a natural guardian dog that is very territorial and has a very protective attitude. They are really good to the family but doesn't go well with strangers.
4. German Shepherd - It’s an intelligent breed that is extremely protective and loyal for owners, they are very protective and intellegent breed and are used as military and police dogs.
3. Rottweiler - Very intelligent and loyal to their owners, this breed generally found unfriendly with strangers until the person is not introduced properly
2. Doberman Pinscher - They are a natural guardians, with a medium sized muscular body they look like an aristocrat breed, it is generally very reserved with strangers.
1. Bullmastiff - If you are looking a dog with typical guarding qualities, Bullmastif is the best dog, They are known for the physical strength, protection instincts, courageousness, and intellegence.