While the case could be made for a couple of different players: Mats Marner, Ryuuji Minamino, Linus Grimstad & Chris de Siren
I think the most likely candidate in the mentioned group for the Fallah trophy is Linus Grimstad.
Grimstad is tied for second in points, first in +/-, he's not only efficient offensively, he blocks more shots than any of the other high scoring players.
Arguably he does cause a lot of giveaways, but he takes the puck more than he loses it and he's alone in that for the top 5 point scorers.
Grimstad is also used in more situations by his team as he's not only seeing ice-time during normal play and power-play, but he's also seeing ice-time while the team is short-handed.