If you’re passionate about adopting a blue tortie cat, I suggest first checking in with your local cat shelter to see if there are any blue torties in need of a home. Considering how rare these kitties are, it’s unlikely that you’ll find a blue tortie cat in the shelter.  What I recommend doing is posting on social media that you’re looking to adopt a blue tortie cat, and see if there’s anyone that can help you do so. I’m sure someone will aid you in your search for a new feline friend. Good luck!