If the Tigers are going to pull off any huge trades this offseason (that don't involve Tarik Skubal), it's likely that they'll be almost entirely dependent on prospects. They have one of the best farm systems in baseball, and they have a handful of major league-ready players who don't have a clear path to the majors in Detroit.
When it comes to the actual major leaguers, there aren't a ton of options. If we take Skubal off the table, you could look at Reese Olson, but he's been injured a lot in his short career. Riley Greene should be untouchable.