It would help if you gave us some idea of where you're at right now. Do you know the difference between an aquatic and an oriental? If so, do you understand the difference between a fougere and a chypre? If you know you don't like one kind of frag, then you can eliminate the ones that are similar. If you know you dislike a note, you can see if reviewers say that the note is strong in a particular frag that interests you. You can ask questions here, as you have done, but be specific !