First time skiing out west recommendations?

Me, my girlfriend, and her brother are beginner snowboarders and learned at Wachusett in MA and have been 6 times. We can do the easy blues. I know that the blues out west will be much harder so we’ll definitely stick with greens at first.

We want to experience skiing outside of the east coast so we’re looking to book a 3-day trip during the first week of March to Denver or SLC, does anyone have any good recommendations for good beginner friendly resorts?

Something good logistically with nearby lodging with wide green runs that isn’t too expensive.