A good credit card to build credit after bankruptcy is a secured credit card. Secured credit cards require a minimum security deposit of about $200 or less, depending on your creditworthiness. The credit limit is usually equal to the deposit but the minimum is $200. The issuers of secured credit cards report credit activity to the major credit bureaus, so you will be able to improve your credit history. But before you apply you should check your credit reports in case if there is some inaccuracy and find out what your current credit score is. Remember that the issuer may deny your credit card application if your credit score is not high enough.