Hi Jamie. Welcome to YT and congrats on your new baby.
I'd get:
1. a puppy sized bed. I got one for Stewie that had a pillow attached to the bed. I got it at Petco. The pillow was like his "mama" when he slept in it.
2. a good quality trainer treat to aid in potty training (which is a nightmare, in my experience, sorry to scare you. LOL)
3. a blankie that they can call their own. Stewie sleeps with me and sleeps on top of his blanket.
4. a collar with ID tags
5. a furry toy that is her size. Stewie used to cuddle with his grizzly bear from Build a Bear, but now he wrestles with it.
6. a carrier for vet visits or car rides. One hard carrier for the car will help ensure their security in the event that you have to swerve or get in an accident.
7. food/water bowl for your home and I also have a cheap plastic double bowl to take with me for travel
8. a million rolls of paper towels for the million accidents the puppy is going to inevitably have.
9. a small bag of the food the breeder had her on/ a bag of food that you plan to switch to so you can mix them and do it gradually so you don't upset her tummy.
10. a cute outfit for her to wear when people come visit (optional of course) haha.
P.S. I like the name Joy. Good luck and let us know if we can help!