Choosing the right puppy isn't simply about finding the puppy you fall in love with first.
Before choosing an individual puppy, think about the adult dog that puppy is likely to become.
Consider:
Adult size.
Energy and exercise needs.
Temperament.
Sociability.
Grooming requirements.
Trainability.
Breed tendencies.
Health.
Your living situation.
Your work schedule.
Children or other pets in the household.
Activities you'd eventually like to enjoy together.
Then look carefully at where your puppy comes from and how the puppies have been raised.
Finally, consider the individual puppy.
The bold puppy who climbs into your lap first isn't automatically the "best" puppy.
Neither is the quiet puppy sitting at the back.
The goal is to find a puppy whose likely needs and temperament are a good match for your actual life.
Not just the life you imagine having with a dog.