I am imagining a much simpler plan for free agency - three free agents.
The Sox are likely to sign one starting pitcher. I would add Matz to the list not because I think he is a good fit, but because the rumors are already out there. I would also add Martin Perez, again, not because I think he fits, but Bloom has already signed him twice. Other candidates are probably pitchers like Jon Gray (who is now 5th in fWAR among free agent starters since 2018, behind Verlander, Kershaw, Gausman and Stroman), Jakob Junis (long shot who has been limited to about 65 IP in the last 2 seasons due to injuries, and therefore might be willing to sign a short term low money deal), and Matt Boyd (not a free agent, but is a non-tender candidate in Detroit).
I expect a RP to be signed. But not a conventional closer, because Bloom ahs a history of building bullpens using interchangeable parts for that role. With one (or hopefully both) or Houck and Whitlock in the bullpen, someone like Archie Bradley might be a solid fit. Mychal Givens is among the leaders for free agent RP since 2018, along with Ryan Tepera. Another name I keep on the list is Hansel Robles, since he has expressed interest (although I should note that it's not exactly uncommon for players to expres interest in staying with their current team during the timeframe when that's the only team they can legally negotiate with). Graveman is another name, but he might be pricing himself out of the Sox range with his uncharacteristically stellar season. He also has a long injury history, although a lot of that damage was when he was trying to be a starter.
I expect a 2B. Cesar Hernandez is the headliner here, IMO. Semien is a name linked to Boston going back to last year, and his QO might be less of an issue given that Bogaerts has already voiced his desire to exercise his opt-out. I like Eduardo Escobar as a hitter, but not as a fielder, although repeated shifting strategies have lessened the need for defense at 2B. Jonathan Villar has some potential, but at the end of the day, he also strikes me as a best-case scenario for the future of Jarren Duran.
I think another pitcher is acquired via trade, probably involving Duran, who has no place to play, is MLB-ready, not getting younger, and makes the league minimum, which maximizes his appeal around the league...