Here is a summary of 5% cash back of credit card for quick reference:
| Card | Category | Cash back% | Enrollment needed? |
| Chase freedom | Amazon.com Hotels Restaurants | 5% | Yes |
| Discover card | Gas Stations & Electric Vehicle Charging Stations, Home Improvement Stores, and Public Transit | 5% | Yes |
| Amex Gold | Grocery, exclude Walmart, Target | 4% | No |