I think u should call her brandi.

 For me I like one syllable names for all dogs, it is easier for them to learn and when you are teaching a dog to mind, the commands are all one syllable so why change the parameters. However that said, most dogs react to the tone in your voice more than the name you have given it, try it on one of the dogs you have now, any word that is about the same amount off syllables in the come here tone will work. You will be amazed at the names and words your dogs will come to! Make sure and take her to the vet right away and have her spayed and her shots brought up to date, she may be missing because of her first heat, so check the paper as well.

 Any of the online lists of baby names will give you ideas, but I'd suggest choosing a name that sounds different from the names of the other dogs in the household so each knows its own name.