If the Sox trade Dalbec, I could see it for the following players that makes sense (and work per baseballtradevalues.com):
To the Angels for OF Brandon Marsh (.811 OPS in AA last year). The Angels could move La Stella back to 2b and Marsh is blocked by Trout, Upton and Jo Adell in the Anaheim OF.
To the Braves for RHP Bryse Wilson (3.42 ERA in AAA). This would mean the Braves prefer Austin Riley in the OF, which may or may not be likely.
To the Brewers for OF Trent Gresham and RHP Freddy Peralta. Assuming the Brewers let Moustakas walk. Gresham is a bit of a post-season goat, but 2 prospects for 1 prospect seems like a stretch here. I would make this deal, but it's not my top choice.
To the Twins for RHP Jhoan Duran. Sano can go replace Cron at 1b, who will be non-tendered. Duran probably doesn't start the season in Boston. But it's fun to think of Sox announces having to differentiate between Jhoan Duran and Jarren Duran (no relation).
To the Cubs for Kyle Schwarber: Bryant can play LF. Schwarber is basically Dalbec without the defense, so no idea where he fits in Boston unless JD opts out and is not re-signed. Hard pass.
To the Guardians for RHP Aaron Civale. The Guardians are reportedly looking for offense at 2b or 3b, with Jose Ramriez taking the other position. Civale is a Northeastern alum who gave the Guardians a 2.34 ERA (3.40 FIP) in 57 IP last year. This one is my top choice, and not remarkably unlikely.
But please, no Ockimey or Travis in Boston. Every time you write that, it makes me cry...