Where is the best fit for Linus Ullmark?

There's some speculation about whether the Ottawa Senators would try to acquire Linus Ullmark from the Boston Bruins because of their goaltending struggles this season. How was that Brian Elliott for Craig Anderson trade 13 years ago already? A 1-for-1 swap that pretty much settled Ottawa's goalie situation for years.

But is there another team that would be a better fit for Ullmark if Boston does decide to move him?