You might try a C.Crane FM Reflect antenna. I have one that performs well in a fairly mountainous area. I mainly listen to NPR, 88.5.
http://www.amazon.com/C-Crane-FM-Reflect-Antenna/dp/B000EFHPKO
http://www.amazon.com/C-Crane-FM-Reflect-Antenna/dp/B000EFHPKO