PDG has been a mainstay so far

I think you could add Zadorov or de Haan

I added De-Haan but not Zadorov because he's only a RFA.
The idea here is rentals.

I don't view him as having much value hence bottom of the list but if he has a good year and a team wants depth they may give something up for him.NY moves him as the contract is ending and they are probably set to move on anyway.

Hes our joint 2nd leading scorer

while that maybe true historically he ain't done much and doesn't really have a huge role there going forward.
So he doesn't hold much value as far as teams rushing out to get him and NY looking to keep him long term at any significant raise. That simply ain't the long term plan there.

theres a couple other pieces I can see

Tanner Pearson
Alex Galchenyuk
Erik Haula
Mikeal Granlund
Brad Richardson
Bobby Ryan
Carl Soderberg
Brandon Montour
Patrick Marleau
Alaxender Wennberg
Vinnie Hinostroza
Antti Raanta
(this ones controversial) --> Patrick Laine (if Columbus cant agree on an extension)

Add Rakell too

again, looking at mostly rentals, no RFA, or really long term deals.
Some of these guys I agree with you on.....but again teams have to be eliminated. Right now these are the teams most likely looking out.
Some of these guys I don't think will be chosen for different reasons.
Marleau to old.
Ryan, while having a great year in DET kind of same thing.
Galchenyk person stuff, don't see much interest in teams chasing him. They are trying to win a cup not gamble on a 13th forward spot.
Wennberg Haula, Hinostroza, yeah totally....lets see what happens in that division first.
It's too early to eliminate everyone.

not a rental.

Sabres have lots of RD rentals, McCabe isnt probably the guy who gets moved