Hi there are not many good yorkie breeders here in Il, unfortunately, but if they are willing to travel, Indiana and Michigan have awesome breeders. One breeder I know off the top of my head is Brenda (Breny), she is in Michigan. I'm sure if she doesn't have any puppies available, she could help you out in finding someone who does. Her website is
Home - Greens Treasured Yorkshire Terriers and Biewers, check it out