If say the trade bait is:
Bradley
Pillar
Workman
Hembree
Perez
Moreland
Realistically they all won’t be moved and probably won’t bring back much if anything, since many teams are going to be holding back. No point in going all in for a postseason that might never happen.
Workman is the best piece. Followed by either Perez or Hembree. Pitchers, and especially relievers, historically seem to fetch better returns than position players.
The Sox might try to move Martinez as well, as he can opt out anyway. And while his value as a free agent might not net him the salary ($19.38 million) he is owed over the next two years, he might be able to increase his years. If the NL retains the DH, his chances of opting out should go way up. So he certainly could be tradable. Not sure he brings back much, either, as a rental DH in a season where the playoffs are in jeopardy...