Some ski and mountain resorts have seasonal workers from various countries who come to work throughout the year. I’ve seen them in Utah, Colorado, California, Oregon and various other places. Maybe consider working at one for a season to get a feel for it (and take road trips on your days off to the various national parks in these states and giant redwoods). Surely you’ll make some connections and hopefully find a path to residency.
I think Netherlands recently changed the rules and you can keep dual-citizenship now. Probably easy to look up.