Hyman passes for me. A lot of leaf fans defer to "ohhh but Matthews had to play with anchor Hyman". Whenever I see him, he looks like a good player. Not a ton of finish, but does his role extremely well. I think he would work well next to any star player.
Klefbom is another guy I always like when I see. He has great advanced stats, he moves very efficiently for a big guy and makes some very nice heads up plays. A hammer of a slapshot and looks comfortable and calm in his own zone. Looks like a 1D to me, but the on ice results paint a different story (maybe he will one day, I can hope)
Laine does not pass for me. Jets fans hate when other fans rip on their star player, but his defense is flat out bad, his compete looks lacking. He isn't overly physical or quick. Even his play making is weak (Ovi makes nice passes more consistently than most would guess). His shot is incredible but the rest of his game makes me think he never becomes that franchise defining player.
Klingberg is a unique one for me, in the sense that I see how great he is offensively. He makes great stretch passes, and he looks like a unit of a QB in the offensive zone. But he does not pass the eye test defensively. Dallas fans will argue till they are blue in the face about his defense, but I consistently see him outmuscled, beaten to pucks, and making questionable plays in the defensive zone. I'm not underrating his offense in anyway, but I think he looks and is 1-dimensional.