He's been linked to Dallas several times and his wife is from Houston.
This would certainly be a fit. I know it's been suggested that he wants to stick to the East coast / Northeast sort of area. But if his wife is from Texas, i could certainly see that being a viable spot for him to go.
I was really surprised to see him willing to go back to Montreal, since it seemed like they couldn't get out of there fast enough. But it also felt like a huge pressure in that was the cross-border travel restrictions through covid. With that no longer being much of a factor...maybe he realized that Montreal was actually a pretty nice place to live and play. Maybe the steel city wasn't all it's cracked up to be.
The Stars could certainly use a solid Top-4 RHD like him. Even if Montreal doesn't retain...that retention that's already on his deal now, brings him down to a very reasonable price for what he offers. Just swapping him for some other salary like Marchment could make it work.
Still seems though, like the Habs could actually just want to hang onto him. He's a good veteran mentor and guy who can help shelter some of the young defencemen coming up. If he's not a malcontent in Montreal, it seems entirely reasonable to just keep him.