I'm not sure why you would want to get two new cards, unless the balances are so big you can't qualify for that kind of credit limit on one card. (foxbusiness.com)
To boost your score, you can ask for credit limit increases on the cards you keep (your card issuer may not grant your request). (creditcards.com)
Taking out multiple new credit card accounts at once or getting a higher credit limit on more than one card at the same time can also hurt your credit score. (supermoney.com)