Welcome to YT! I am very sorry to hear about the passing of you little one.
This is a great site for information. There are lots of breeders here. A strong word of caution though: Please keep in mind that being a member of YT does not automatically make one a "reputable" breeder. Please be cautious with ANY offer you get on here from any breeder with available pups. It's not at all uncommon for breeders, many times very shady ones, to contact people privately via PM in an effort to stay 'hidden' so to speak and to avoid having their questionable practices exposed to newer members.
As with ANY breeder, really do your research on them and the red flags associated with Yorkie breeders to help you avoid being taken advantage of.
Good luck in your search! I'm sure the perfect furbutt is out there for you.