Highly recommend "Breakthrough on the New Skis" by Lito Tejada-Flores for an explanation that makes sense of what to do on skis. It's not an easy concept to communicate and comprehend, and much more important than any equipment at an intermediate level. More or less any set of all mountain 80-95mm width skis with correctly fitting boots will work until you're skiing off-piste.

https://www.amazon.com/Breakthrough-New-Skis-Goodbye-Interme...