Mitch Marner is in a similar situation to Phil Kessel in that he's being asked from the TML fans to be more than he is given his salary. He needs to go to a team who's leadership core is already very strong and he can settle in as a key player but not viewed as one of the "top" guys.
Penguins, Canes, Stars are three teams that I think would be a good fit and can actually fit his cap with some maneuvering. Value and desire is obviously TBD, but I'm only looking at teams that have strong leadership cores.
I'm torn on the Kings. I think they have the leadership core on a similar level of the above teams, but we see how well that helped PLD.