Welcome to YT
I see the Yorkie Bug has hit you hard
After I saw my first Yorkie, I knew I would have one someday, and it took a few years but I finally got one, and then when my first girl passed away, I got two more
I think a rescue would be wonderful, there are so many babies in need of a good home, and a lot of the time they are pretty well potty trained. A puppy, while adorable, is a lot of work
If you really do want a puppy, though, a good place to start looking is at
Yorkshire Terrier Club of America, on their Breeder page. Please buy your breeder first, then the pup. There are so many horrible breeders out there, selling sick little puppies, I would hate for you to become victim to that. There can be so much heartache involved with a backyard breeder's pup, or a pet store (puppy mill) puppy. There is also a New Home/Rescue section here where you might be able to find a dog in your area.
Good luck in your search!!.