The first thing that really needs to happen IMO for things to work is for Lafreniere and Kakko to solidify spots on the top 2 lines. Or certainly, that would be the most ideal thing to happen.
Find a way to add Copp, Lehkonen, and an LD - Giordano, Leddy, de Haan depending on the cost and if they want to prioritize offense or defense.
Kreider-Zibanejad-Lafreniere
Panarin-Strome-Kakko
Lehkonen-Copp-Goodrow
Hunt-Rooney-Reaves
Chytil, McKegg, Barron, Gauthier
Lindgren-Fox
Miller-Trouba
LD-Schneider
Nemeth, Jones, Hajek, Lundkvist, Tinordi
Shesty
Geo
That's a team you can go to battle with in the POs. Obviously, some of the depth players listed will be moved.