Make him the center. He can play there very well. Including defense, playing without the puck. He'll also be forced to move his feet, make pass, and not try to transition. It's the passing that is one of his strengths. He just needs to practice faceoffs. One would certainly be a better center than Dach or Slafkovský.
For example: Heineman - Laine - Gallagher. Heineman is an ideal player for him. Maybe it is strange, but he was best with similar players in Columbus, for example Jenner, Nyquist or Chinakhov. I liked him with Olivier too. And not ideal with playmakers.