Hi and welcome to YT. I hate to disappoint you but you will not be able to find a healthy, standard yorkie for less than $600. Occasionally some get lucky but for less than $600 people often end up with silkie mixes or other mixed breeds or loads of health issues. You may want to wait until you have more for the purchase price and it doesn't stop there. Yorkies are very expensive to take care of. Just something to think about. Little dogs in general can be expensive because of vet visits, ect. But I sincerely hope you find what you are looking for
