I have no idea what team would do it, but I count pitchers ranked from about #61 to 90 as #3 SP'ers.
These might be pitchers like these:
by fWAR (1.7 to 2.0): jake irvin, J Tailon, Nick Pivetta, R Blanco, K Crawford
by ERA (3.85 to 4.25) Mitch keller, A healey, K Crawford, Gausman, jake Irvin, Bassitt
by xFIP (4.05 to 4.25:) Heaney, Bassitt, Taillon, Wacha, Blanco, Gausman
Some names are on 2 or 3 lists.
You think Pivetta is better than Abreu? (Now, the Sox need pitching, so we would probably not trade 3 years of Pivetta for 5 years of Abreu, and the gae and years of control matter, too, but I think many names I listed seem about even in value.
I did lis those who look much better or worse, but look for yourself:
https://www.fangraphs.com/leaders/major-league?pos=all&stats=pit&lg=all&type=8&season=2024&season1=2024&ind=0&pageitems=100&month=0&sortcol=19&sortdir=default&qual=80&pagenum=1