pekingese
toy poodle
bichon frise
dandie dinmont terrier
english cocker spaniel
field spaniel
american cocker spaniel
bergamasco
Laekenois shepherd dog
bouvier des flandres
Regardless of your brief description covering a load of different 'breeds', unless you have the paperwork from the official Kennel Club of the country he was born in, you have no guarantee about whether he is 'a breed' even if he is.
There are many dogs, who are light brown with curly coats. Unless you post a picture of the dog, it's impossible for us to even guess what breed it is.
There are over 600 recognized dog breeds, world wide. You will have to be MORE SPECIFIC. Provide a picture and a country were it it is common = since this is a board that is seen world wide. Define "small" by shoulder HEIGHT, or by body weight don't be an @$$.