Great point.
One thing, I expected a lot of trades like this to take place before the Vegas draft. I.e. a team bound to expose a good player dealing that player for assets they wouldn't lose. But there were surprisingly few, if any, trades like this. I definitely think the GMs will be better prepared for this expansion draft, so there should be some openings.
Just going through The Athletics last mock expansion draft and there are some really interesting names worth targeting that a Buch+Strome and maybe Georgiev and a D prospect could all be pieces to facilitate.
Some options that stuck out to me:
Tyson Jost : Young former 10OA. Not going to be a scorer like that draft position would hope, but has turned into an effective bottom-six center for a really deep and talented Colorado team. More importantly, he's a really fast skater and has that stocky build along with quickness that could help us in transition in a big way. Has enough skill and vision to mix around the lineup. Likely a cheap re-sign given his lack of production.
Andreas Johnnson: Great speed, moderate price, shoot-first winger. Something like a combination of Derek Dorsett and Michael Grabner. Similarly able to mix and match up and down a lineup.
Radko Gudas: An actually effective defenseman who can really lay people out and will give the team a lot more muscle.
Cal Foote/Justin Holl/Carson Soucy: big, mobile, stable third pairing options.
Some other intriguing options could come about if Seattle would retain salary (and why wouldn't they for the quality they could get from us in Buch especially):
Brett Burns: Can you add a third team (DET? OTT?) to double split him? Brett Burns in a third pair role would have the potential to really contribute. At 2mil for four seasons with a modified NTC.
Jason Zucker: 50% retained would be two years at 2.75 for a guy who had a terrible season but has been a really effective player. Lots of speed. A shooter.