I own five basenjis. Two yodel until you have a headache and my female barks. She always did. Short clipped barks. I also researched the breed before getting my first and she is an excellent dog. My third basenji was a handful. Three years later and he has stopped his destructiveness etc. It was a hard three years. Lol. You never know with a basenji. Greatest breed. Loyal, active, funny but some require ALOT of patience.
Welcome to the group! I think it is a great idea to visit a breeder of Basenjis with your son. I hope he will be OK with a Basenji and his allergies don't act up because you all will have such fun with a Basenji. They are smart and sassy and funny and so loving and loyal. If you don't have your heart set on a puppy since very few are available now, you might register with Basenji Rescue and Transport to see if they have an older dog for you. My Basenjis have all been rescues and while each was different, each was the light of my life.