There's a recipe database on this site that's going to give you some good insight if you browse it.
Make an APA with American hops of your choice. To me Centennial is primo.
IRA and Oatmeal Stouts can use more American hops if you want to save money and buy in bulk, but depending on your tastes you'll probably enjoy the more to-style English earthy varietals instead. Fuggles, EKG etc.