The Bengals should be actively exploring trades...

[Murdock2420]

If you are looking for a budget option that you could sign and try to groom there is always Dazz Newsome. Was drafted by the bears and released before the season. Would be affordable, and is young and might have some talent. Downside is, it would take a few weeks to have him fully up to speed. But, might be a good guy to stash on the P.S. once they call one of the in-house options up.