MLB Trade Rumors lists two of the Red Sox star outfielders as top trade candidates before the deadline: Jarren Duran and Wilyer Abreu. Here's the logic provided on Duran:

Red Sox Could Deal Alex Bregman Under One Condition Before MLB Trade Deadline originally appeared on Athlon Sports. The Boston Red Sox need to have a plan at the trade deadline, as there are multiple ways the front office could go. Most importantly, they have a tough decision to make with Alex Bregman.

The Boston Red Sox and Seattle Mariners could come together on a huge trade that would benefit both teams this season.