Reports are that the Texans and JJ Watt have mutually agreed to part ways. He may be an option if Shaq prices himself out of a new deal. I believe that he would jump at the chance to come win one here.
He has played 16 games just twice in the past five years. While he had 16 sacks in 2018, he managed just nine combined over the past two seasons (24 games). Additionally, he managed just 54 pressures according to Pro Football Reference in the past two seasons.