Who would you ideally want as 2C if you were GM?
In a perfect world? Jack Eichel
Ignoring needs and value, I think Hertl, Larkin, Horvat, Nylander, Scheifele, Zibanejad...
They would all be great options. But I get that Vancouver has no need for Girard with Hughes already. Zibby just signed an extension so he's not moving, and I'm sure others have valid reasons why they aren't being moved from each fan base.
But, personally I also think Girard carries enough value that he will likely make some guys more available then normal. It's not very often you get a Top Pairing Dman, under 25 years old, signed to a sweetheart contract for 5 additional years still.
I think if he were actually available, a lot of teams would be lining up to get him.
With regards to your Panthers, I'd have interest in Lundell. No idea if he's even remotely available or not but even though he's not a 2C
yet I think he will be very soon and would be an excellent fit here behind Mackinnon.