Since you don't break down your business expense categories it's difficult to tell you which one is best. You should check out the Ink cards; Cash, Unlimited and Preferred. They all have very strong spending areas and with your CSR card you can transfer the points earned with them to where you want them. Be aware that the Ink Premier card also earns Reward points but it does not allow you to transfer its UR points like all of the other cards do. Personally, I have avoided it for that very reason.