There are hundreds of questionable online websites that have puppies for sale. It is important to meet the mother dog, see her condition and how she and all of the breeders dogs are treated before you buy a puppy. In person. Never have a puppy shipped to you or meet a breeder in a parking lot. Don’t support puppy mills.
Regarding the Washington Post article titled Dog Fight, written by Kim Kavin who is seemingly a commercial dog breeding proponent. There are two sides to every story. You need to hear about what it’s like for the dogs that are in the hands of America’s USDA dog breeders.