Chihuahua is the most popular breed of small dog that can be left alone.
This dog breed is not quite so much they love to play with other dog breeds.
Miniature Schnauzer is the second small dog that can be left alone.
This dog is very friendly and social and they spent time with other pets.
This small dog breed will be left alone the whole day. They are known for their friendly nature.
Maltese have a great attachment to human beings and other pets.
The pug dog breed is best for an apartment because they will be left alone.
This small dog breed is known for its energy level and its great character.
Boston Terrier is the fifth small dog breed that can be left alone.
They love to live alone sometime but they require company around.