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Browse credit cards from a variety of issuers to see if there's a better card for you.
Unfortunately "unable to locate any offers" means no, at least for now.
Not sure what impact you're expecting the Credit One account correction to have on your credit file, but if it adds some points, history, and/or lowers your overall utilization once it is fixed, you can try the prequal again. If that card is your only active credit line, though, you may need to put in some more building time before you'll qualify for an auto loan, regardless of the ssn error being corrected, especially if it's a relatively new account and it's your only source of payment history in your file.
Underwriting for auto loans is a bit more demanding than rebuilder credit cards, and sometimes require more history and experience with debt before you can be approved.