The problem is, most teams have the same issue. Outfielders tend to be skewed much more to lefties. The problem is kind of our own. We need to stop worrying so much about platoon advantages and just have the best bat in the lineup.
Pinango for Isaac Collins would be nice but they'd have the same issue we do. Same for Foscue with the Rangers.
I could maybe see the Cubs wanting a lefty outfielder but I'm not sure what the return would be. Maybe Jordan Beck with the Rockies when he comes off the IL.