I think the Penguins could legitimately help out with Pettersson, Nedeljkovich, and Drew O'Connor.
Pettersson bolsters your 2nd pairing, Neds provides an upgrade to your backup, and DOC becomes a utility player that can work on any line with his speed, forechecking, and PK ability.
Pettersson and DOC are UFAs, Neds has one more year at a modest price. Both Pettersson and DOC could easily be resigned for decent value contracts.
Penguins, in turn will:
1. Be willing to take a cap dump of your choosing.
2. Be willing to take Pickard back if necessary.
3. Be willing to work around your 25/26/27 1sts as there are several conditions on them.
4. Require Sam O'Reilly and a prospect back as well.
Petts+Neds+DOC for Sam O'Reilly+Pickard+2026/27 1st+Petrov+cap dump of your choosing.