You can totally geek out on antenna design.... Trust me! How far away are the stations she likes to listen to? Does she have room for an outdoor antenna? Are you willing to put up an outdoor antenna?
Random wire antenna - Wikipedia, the free encyclopedia
If they are fairly close, a loop antenna is a good choice
Loop antenna - Wikipedia, the free encyclopedia
If you get really crazy you can make a loop antenna and use a variable capacitor to make a tunable antenna.