That. Ive had a bunch of dogs over my life. The best advice I've read about picking a dogs name is to pick out a couple names that you like/match the dogs personality and then see which one the dog likes best, the name that the dog responds to the most.
This. Wait until you have her and learn more about her. My animals are named because of the circumstances under which I got them / their personalities and the names fit perfectly.
If she's all black, try calling her Licorice, Spooky, or Werewolf. Or if you want a stoner name that is a bit more stealth, you can call her Kiefer. (I always thought Kiefer Sutherland was named in honour of kief. )
Gotta go by how she acts and what she looks like... You'll know after a few days don't just pick a random name because then you'll think of the perfect one and it'll be to late.