Citi Custom Cash Card is offering one of the best cash back rewards.

• $200 bonus cash after you spend $1,500 on purchases in the first 6 months of account opening.
• 5% cash back on purchases in your top eligible spend category each billing cycle, up to the first $500 spent, 1% cash back thereafter.
• 0% intro APR for 15 months on purchases and balance transfers.
• No Annual Fee