Tibetan mastiff
These dogs are excellent watchdogs who are accustomed to sleeping most of the day, and awake at dusk. Due to its breed instincts, the dog can bark loudly, especially at night, if it hears a suspicious noise. Most likely your neighbors will not like such an animal behind the wall. These large dogs will feel cramped even in a medium-sized apartment. It is best to get such a dog in a private house with a large plot, where the dog can freely guard his territory.