We'll see in a couple months, but of the 16 teams that are going to make it, how many:
1. Have a need/role for him. Some playoff teams (if not most) have their defense setups already established.
2. Can accommodate him at 40-50%. Remember, it isn't just this season, it is future seasons as well.
3. Can get Karlsson to waive his NMC. I know it seems like any playoff team will be better, but taxes/lifestyle, etc.. can make some teams much less desirable. This isn't a one year rental. There could be multiple millions in extra taxes for someone with as much money at stake as Karlsson.
4. And are willing to give a return the Sharks will accept.