Hi there, ehmuller. I’m always so happy to see women start lifting.
About your question. You’ll need to be more specific. How much weight to you need to loose? What have you tried so far? Do you have a history of exercise that you enjoy? What do you mean by “rapid fat loss?”
If you are not sure how much you typically eat and drink over a typical two week period, start there. Keep a log. Figure out what you’re consuming, and start looking at the things you can change. You may already have a good idea. Everyone has a different Kryptonite.
If you’re able to give more information, people here will be able to give you more meaningful advice.
There’s no one BEST program, or one BEST diet. No secret. No magic.