Interesting targets that are probably very gettable...
Benintendi (pure rental, FA after 2022) - LH bat, can play a s***** outfield just like Tapia, except he isn't an embarassment with the bat. Would allow a true DH rotation that doesnt suck the soul out of the batting lineup. Won't be expensive to acquire either.
Bednar (1 more year at League min - then 3 years of Arb left) - Lefty strikeout machine. Tons of control left. No reason not to be ringing Pittsburgh every day to talk trade. Don't wait. DO IT.
Montas (1 year of arb left, FA ater 2023) - because you know Ryu is likely gone for this year and half of next, (I am assuming TJ is coming soon).
All three help this year, and 2 of them help beyond this year.
No way they could get all 3 of course, but i think 2 of the 3 would be doable.