As far as resorts go, you won't find any on the same scale as those in BC / Western USA.
The two main ones are Alyeska and Eagle's Crest. There is a handfull of other tiny family ski hills.
Heli-Skiing, there's another topic all together. Some of the most intense in the world, many operators, you must be an advanced rider with plenty of backcountry / snow safety experience.