A new song to learn that is fun to play. I play a lot of Trivium, Metallica, As I Lay Dying, Black Dahlia Murder, Iron Maiden, Ted Nugent, any song suggestions along those lines would be nice.
Constant Motion by Dream Theater
I don't know if you are a fan but the riff (and solo) in "Sound the Surrender" by Darkest Hour are very fun to play. Good finger workout.