I have three different options:
Best in theory combination:
Rasmussen - Larkin - Raymond
Think the 1st line is missing physical element, and Rasmussen is the particle to bring that. Larkin and Raymond are all speed and skill, think this would work well.
DeBrincat - Compher - Kane
That Chicago connection again, with Compher's defensive work.
Berggren - Veleno - Tarasenko
Kind of offensive 4th line, Berggren feeding the TANK.
Motte - Copp - Fischer
Bulldozer line - lite. Not as good line as it was with Ras, but if this group will work well together, we will have better Top9 offence.
All the best bisquits together:
Rasmussen - Larkin - Raymond
DeBrincat - Copp - Kane
Berggren - Compher - Tarasenko
Motte - Veleno - Fischer
Different second line, mostly reminding of line from Blackhawks days as Anisimov Centering Cat & Kane.
Really strong offensive 3rd line.
Small role weak 4th line, with minor minutes. Used in situations, maybe even benched if they go with three lines only.
BULLDOZER mix:
DeBrincat - Larkin - Kane
Tarasenko - Compher - Raymond
Ras - Copp - Fischer
Motte - Veleno - Berggren
If Berggren struggles, he should be put small role at 4th line. What is left is the still the strong BULLDOZER 3rd line.
All in all, I don't hate any options, when you have enough good players. I think only lock is Larkin as 1st line Center and Motte as 4th line LW.
Everything else can be different mix.