I have poor credit and my credit score is barely over 500. I am in the process of paying off my debts. Anyone know of any unsecured credit cards I can get approved for?

There probably are not any. 500 is flat out bad credit and you are too much of a risk even for the most flexibable guidelines.

If you are paying off your debt, why do you want a credit card? That works opposite of what you are trying to do.