You can apply for any Discover credit card. Discover cards come with cash back rewards, there is even one with a miles rewards program. You will be able to earn cash back or miles on every purchase you charge to your Discover card. Cash back, as well as miles do not expire and can be redeemed for travel expenses, merchandise or cash. Discover cards have no foreign transaction fees and come with a chip embedded so you can freely use any Discover credit card abroad.