It isn't hard to go find a list of UFA defensemen. All you need to do is remove the ones on playoff teams and you have a list of guys who are almost certainly available. I've posted the list before in other discussions, but you really should have the capability to find it on your own. You can demand someone give a list of players "like" another player and then tear it down because they don't have identical skill sets for nearly every player in the league. The fact is, last year, there was one top 4 defenseman available, and he ended up getting traded for a 1st with 75% retention on his contract so the Lightning could fit him in. There is a much longer list (so far) of pending UFA's on non-playoff teams, some of those are even top 4 guys, which will make for a softer UFA defenseman cost at the deadline than last year.
He will be in demand for sure. Nobody is saying he is bad, or that nobody wants him. The issue of contention is whether or not one of the few first round picks dealt at the deadline (typically there is only a handful of 1sts traded in a year) will be used on him, and if "Savard got a 1st so Chairot will" is a logical statement to make.