from Eric Duhatschek of The Athletic,

In short, the goal is to get a serviceable rental at a reasonable acquisition cost. As I scour the available players, the two that make the most sense are both currently with the St. Louis Blues, Jay Bouwmeester and Carl Gunnarsson. Both are on expiring contracts, Bouwmeester earning $5.4 million, Gunnarsson $2.9 million, so by the deadline, they will be manageable deals. Bouwmeester is 35, the same age as the Flames’ Mark Giordano, and he played three-plus years for the Flames before being moved out in the 2013 player purge that also saw Jarome Iginla exit. He is averaging 19:33 per night, and playing mostly on the second pair with Colton Parayko. Gunnarsson is 32, and has had an injury-filled year which has limited him to 12 games. But when healthy, he often lines up with Alex Pietrangelo on the top pair.

much more (paid sub.) and other topics too...