10. Affenpinscher

The Affenpinscher, weighing 7 to 10 pounds, is affectionately known as the “monkey dog” due to its facial structure and harsh, wiry coat. Originally employed as exterminators in German stables, they eventually moved indoors to become kitchen ratters and beloved house pets.

They are loyal, curious, and famously funny, often entertaining themselves—and their owners—by tossing their toys in the air and parading around on their hind legs.

11. Brussels Griffon

Weighing between 8 and 10 pounds, the Brussels Griffon stands out for its thickset body and incredibly expressive, almost human-like face. They come in two coat varieties: rough and smooth. Griffs are highly sensitive, deeply bonded to their primary owner, and tend to act like “Velcro” dogs, following you from room to room. Their prominent eyes and pouty faces make their moods incredibly easy to read.