and applying to 5 dif cards at once wont tank my credit
Not recommended to sign up for all at once, just giving you some ideas.
The card issuers look at more than just your score when evaluating you for credit, one thing they look at is recent inquiries, so those would hurt you even with a stellar score. I'd guess each hard pull hits your score between 4 and 10 points. Another thing to remember is that most applications only hit one of your credit reports at the three credit bureaus.