If you want a guy that can be a legit 3c, than that's going to be far pricier. If the idea is that we'd rather see what Haula healthy as opposed to a vet retread 3c like Pageau (and by extension, that would likely apply to other 3c of this ilk - Compher, Copp, Anaheim Strome, etc) then I think we are at a point where we aren't really interested in fixing this problem because I don't know how this team does that without moving a guy like Nemec.
No reason to try Texier as opposed to just bringing back Glass, tbh.
Krebs is a little more interesting as a 4c if only because he's only like 1.4 million and can more consistently stay healthy, but I think you have to actually deduct from the roster for him. The last thing Buffalo needs is more futures it feels like. But I'd kick this around for sure, but the premise is kind of the same as what we have - hoping a 4c can be a capable 3c
Colton could be had for futures, but doesn't seem like a true C. Colorado was starved for centers and they mostly played him on wing this year, I think. Colton strikes me as more of a wing who can take faceoffs. I am a fan of Colton and I'd take him, but I don't know that he actually resolves a 3c issue. I dunno.
Sillinger is definitely an intriguing one, but I Think this is pricier than people want it to be. This is around the same age that Dach was traded (he was about 21 years, 6 months, Sillinger would be 22 years old, 1-2 months) and Dach returned the #13 pick overall and a third. The devils have no first this year which I think would immediately put them at a disadvantage in acquiring him (plus same division and all). I just think that people may be surprised at what that return looks like if they move him.