What are the scoring parameters? That would make some difference.
Bennett seems obvious, until you realize how many penalty minutes he gives you, but you can probably get those back with other players via draft every year.
Miro is a great Dman, but does he give you enough points and penalty minutes to justify keeping?
Eichel has played over 70 games just twice, and scored over 70 points just twice, and the VGK have likely hit their peak, and are aging.
Nylander is in the last year of his deal, and likely moves on to another team next year. Will that team be as good? Will he score as many points when he's not surrounded by Matthews and Marnier?
There is really no right answer. You're going to lose 4 good players no matter what. Personally, I would drop Miro, Eichel, Bennett, and Nylander.