The simplified approach is to think Familia will be the free agent target. Dombrowski has a reputation for liking harder throwers and Famili is the hardest throwing closer available in free agency. But I know he’ll look at more than just radar gun readings. Ottavino has minimal closing experience, which might make him the cheapest option of these (as well as the most questionable if no one else is acquired).
If money is the issue, sign a starter (Eovaldi? Pomeranz? Sanchez?), sign Ottavino or Kelly, and trade for a closer (Colome? LeClerc? Kela? Knebel? Yates?) using either Chavis or Dalbec, and Johnson as the starter package of trade bait...