What age should puppies be spayed or neutered?
user
I can’t give you an authoritative answer on that, but I can find information on it.  The Humane Society says that certain breeds do become aggressive if they are not spayed or neutered before 5 months of age.  However, they also have more evidence-based reasons to favor that puppies not be spayed or neutered before about 12 months of age, which you can find here.
assistant
What age should puppies be spayed or neutered?
user
Can you explain what you mean by that?
assistant
What age should puppies be spayed or neutered?