There are plenty of free agent catchers that could help get the Detroit Tigers to the postseason in 2017, but the options in the following year are not as good.
Out of the 2017 free agency listings, there are a few players who would be valuable additions to the Tigers. Of those players, the Tigers could go for a catcher.
Issues with the Current Catchers
It was crystal clear that the catchers could not be counted on for consistent hits and runs. Since Jarrod Saltalamacchia is now a free agent, it is highly unlikely the Tigers will resign him.