All of the above references are excellent. HOWEVER, you first need to ascertain what your needs are. Do you live in an urban jungle of FM stations nearby that compete with a station close-by on the band that you wish to tune in? Or, conversley, are you 50 miles away from the nearest tower? By way of example, each scenario requires a different but equally deliberate solution.
See my audioreview.com review of the APS-13 antenna. It will give you some ideas of what you might be getting into.
Finally, I did the WHOLE ball of wax when I researched this topic a few years ago, and heartily recommend APS and its principal, Ed Hanlon. This IS an endorsement, because he is priced right and is one of the last truly honest proprietors in this biz, plus he won't take you to the cleaners.
Let us know your current reception problems and goals. You may only need a higher selectivity or sensitivity on your front end.