As much as I'd love to bring back Bert and/or Domi we have so much depth coming up on the left side (Knies, McMann, Cowan, Grebyonkin) that I feel like it might be better to invest that cap space in a center like Lindholm.
Signing Lindholm (who Tre is familiar with) would allow us to move Tavares to the wing or down to the third line until he hits UFA, and give us another defensively responsible center on our top 2 units. We don't have a lot of center depth in our organization, and next year's free agency doesn't have any top 6 centers just entering their prime years. Even if you think Minten will eventually be more than a 3rd line guy, it will still take some time for him to be that.
Lindholm would provide good balance to the Nylander line, and he's also a right shot center who excels in faceoffs, which is not something we already have. We could sign Lindholm (he's expected to earn between 7 to 8.5 million, and still have over 12 million in cap space to sign two defensemen (even without clearing out anyone). We'd have to go cheap in goal but that already looks to be the plan with guys like Broisset and Stolarz rumored, and as Stuart Skinner is showing you don't necessarily need a stud goaltender if you have a great team around them to get far in the playoffs. They just have to be competent and not give up backbreaking soft goals regularly.