Responsible breeders usually crop the ears of the whole litter before they leave for their new homes. I've never had to have a puppy cropped, they all came already cropped from the breeder. Sometimes the breeder will work with you as to what lenght you want, but they still have good croppers who they know will do a good job and they want their puppies' ears to be cropped attractively, and they want to be sure the aftercare is started correctly, so the puppies have the least amount of discomfort.
I take it your puppy is going to come uncropped. Have you discussed this with the breeder? There are not "three types" of crops available. Ear cropping done well is an art and the best croppers consider the shape of each puppy's head as well as the weight of the ear leather and the strength of cartilage when they do the crop.
What you seem to mean by "working" "medium", or "show" is short, medium, and long. I guess medium would be a good length for a pet puppy. But medium means different things to different people. Have you found a vet to do the cropping? And are you sure that s/he really knows what they're doing?
I take it your puppy is going to come uncropped. Have you discussed this with the breeder? There are not "three types" of crops available. Ear cropping done well is an art and the best croppers consider the shape of each puppy's head as well as the weight of the ear leather and the strength of cartilage when they do the crop.
What you seem to mean by "working" "medium", or "show" is short, medium, and long. I guess medium would be a good length for a pet puppy. But medium means different things to different people. Have you found a vet to do the cropping? And are you sure that s/he really knows what they're doing?