Puppy names please help?

I'm getting a puppy in a few weeks and it's an Australian Shepherd. IDK if I want a boy or girl. (i think i want a girl puppy) and i need help with names. I like unique names for a girl and i like common names for a boy. i like girl names like these names Katara or Hypatia and names like Christian or Ryan for a boy. So can you help me with names??