How about Kyle Hendricks from the Cubs as a trade target?
He's 33, apparently more or less healthy again after recuperating from some sort of capsule tear in his shoulder, and on the last guaranteed year of a 4/$55m deal with a $16m club option for next season ($1.5 m buyout). I think his AAV would be like $8m for trade purposes.
A soft-tossing righty, he doesn't really strike anyone out (5.4 K/9 this season; 7.3 career), but he also doesn't walk many or concede many home runs or hard-hit balls. I have to say, I don't even pretend to understand how he makes his repertoire work, but he's been pretty good for a long time.
But if Chicago is selling, presumably now's the time to move on from Hendricks, whom I believe is the last Cub standing from the 2016 championship roster. That club option feels like it has some value if he finishes the year healthy and effective.
He should not be expensive to acquire, and he fills our glaring need for an OK starting pitcher who is expected to be healthy for the next several weeks. We don't need a playoff series Game One starter. We need a guy who can make ten starts or so while Houck and Sale and Whitlock get healthy and rehab.
edited to add that BTV has him slightly negative in value, -1.5. That seems low to me, but not by much: I'd assume he's only slightly positive in value, someone we could get for one of our interesting-but-flawed A-ball SP prospects, or two if we wanted the Cubs to pay shipping and handling.
edited again: If I were pitching Chicago on a trade, I'm proposing a Kluber/Hendricks swap, where we would also add, say, Angel Bastardo.