Edited Jan. 11 at 7:29 a.m.
This is tricky. Not many teams looking to add a team controlled middle 6C that would have an interest in parting with that kinda top 4D that I could think of.
There’s also another issue in that (2022 Tintin would be screaming if he read on from here…) McLeod has been so darn good that I’m not convinced that the rest of the league has re-valued McLeod properly, he is likely to be a VERY underrated asset by most front offices in the NHL. The stuff McLeod’s been doing with Holtz and whomever else on that line is fairly remarkable.
In terms of 1 for 1s I could only see Markus Pettersson making sense. If adding a fair amount of futures maybe you could pry Vince Dunn out of Seattle (unlikely though). Chychrun, Skjei and Välimäki also come to mind but these seem like losing trades for the Devils to me, at least at this point in time (past Tintin is in true disbelief right about now).
Perhaps there could be a reasonable three team trade out there where the Devils offer McLeod, one team offers futures and a third offers a TOP4 Dman, idk though.
However, it could make a ton of sense to look into trading McLeod in the summer. Maybe he could be packaged in trade for Saros or Gustavsson, or to find a defenseman in the summer?
Edit: Chychrun would actually be worthwhile to explore trading McLeod for in something closely resembling a 1 for 1 deal.