If I was them I wouldn't offer Newhook or Byram, so that would leave guys like Olausson, Barron, and Helleson.
If it was to be Newhook, it should have been last year. I could be wrong but that ship has sailed. It doesn't make sense to trade Newhook for a current version of what you hope he'll become only to possibly lose him in FA in a few months.
Instead of wasting valuable assets on a rental, the Avs are better off keeping them and targeting someone (whether it's Hertl or Forsberg) in free agency.
They'll need to re-make the 2nd line but they'll have 9ish million coming off the books with Kadri and Burakovsky.
And so far this season, Kadri's having an incredible year. He might cool off, so that's a big caveat. But there's less of an imperative to make this move because of this.
Olausson is probably Burakovsky's eventual replacement. Barron/Helleson are probably a replacement for Johnson and Girard/Toews (when they'll eventually need to trade one).