So just doing a bit of sleuthing, Granlund and Giroux (who's mostly a wing) are by far the top two UFA centers who will be available at the deadline. I don't expect Crosby (UFA) or Malkin (1 year) will be available though if either were they'd be the top choice. I think Kadri's contract is too bad, but Calgary wants to move him out. He has multiple years, but I expect Zegras will also be on the block. Not sure how much he's seen as a playoff guy, and I'm not sure the Ducks won't want hockey trades. Gourde (Seattle), Dvorak (Montreal), Johansen (Philly), Bjugstad (Utah) may also be deadline bait.
Nashville could use a LH top 6 playmaking center (they have 3 RH goal scoring wingers) not much at center. Minnesota could use a center. Vegas, Toronto, and NYI may be interested in him as a winger.
If he performs like last year, I could see Granlund commanding a first (or good RHD/goalie prospect). Feed the guy PP minutes with Smith, Celebrini!