Kapanen - Matthews - Nylander
Johnsson - Tavares - Marner
This is my preferred top 6. Matthews wingers are great at zone entries. Kapanen is a secondary goal scoring threat to feed outside of Nylander looking for the obvious Matthews pass. Kapanen has shown the grit to fill in that "Hyman" role on top of higher end skill and his speed to burn is always a plus.
Johnsson looked great with Tavares and Marner and they were dominating together. No reason to not put them together again.
Bottom 6 is really up for debate, but I think Kadri can still drive his own line. Give him a lot of grit to work with.
Hyman - Kadri - Brown
Moore - Gauthier - Lindholm
Kadri gets two guys who will bang it down low and cause havoc. They also have no problems deferring to him, so he will have the puck the most on that line.
Moore looked great in his NHL stint and for all intents and purposes, he would drive that fourth line.