I actually think the Flyers are likely the best fit for a Trouba trade at this point.
Why is Trouba a good fit for the Flyers?
A true top-pairing RD that can log huge minutes, plays a shut-down role against top competition, and still produces consistently on offense. If the Flyers' brass are looking for some physical bite on the team, Trouba is one of the toughest D to play against. He erases offensive chances against from around the net... At age 24, Trouba also fits with the Flyers' older core (Giroux, Voracek, JVR, Couturier), but will still be in his prime as a younger core develops. He's a good "bridge" player in terms of the organization's development.
What would the Jets need? Well, the main thing is to get comparable value, but ideally they would like a young D in return that could be a solid top 3-4 D. Anything additional would depend on the quality of the core piece. If they can't find a top D, then I could see them going for more value but with other positions or assets (i.e. centers, wingers, picks).
Okay, so some ideas....
#1
To Flyers: Trouba
To Jets: Sanheim + 1st
#2
To Flyers: Trouba
To Jets: Myers + Frost