CNBC Select analyzed a variety of credit cards that can help you optimize back-to-school shopping for electronics ... Card from American Express Best for welcome bonus: Chase Freedom Unlimited ...

Bank of America and Discover cards are currently not available ... Discover it® Student Cash Back Best for rotating bonus categories and welcome bonus: Chase Freedom Flex® Best for Amazon ...

One other selling point of miles credit cards is their generous welcome offers. A single card offer could be worth $500 or more. Cash-back cards may also have welcome offers but at smaller amounts.

See how we rate credit cards ... in welcome bonuses, which are great for padding tight budgets. Finally, we considered additional benefits such as 0% APR offers, travel rewards, and cash-back ...