Advice on family friendly ski resort with good offpiste/backcountry

Hi SJ’ers, my first post to ask for some advice on where to go on ski holiday in the coming February. I have slightly complicated wishlist given that its a family ski trip, but I would still like to go to a place that has good offpiste/backcountry potential for one or two days of skiing.

I’m looking for a place that would be family friendly and have few things to do off the slopes (eg crosscountry skiing for the mrs, kiddies playground or activities), have an English speaking skischool (will want to put my son for first ski lessons), but also offers Japanese culture. Given the last point I wanted to avoid Niseko based on the stories I've heard and have been recommended to look at somewhere like Myoko Kogen on Honshu. Maybe also Nozawa Onsen? Not sure about Hakuba?

Only skied in Japan once before as went there last winter for a 10 day backcountry tour with one of the guiding firms. We hit central Hokkaido and skied some fantastic snow in Asahidake, Tokachidake, Furano and Kamui, so therefore was thinking of visiting Honshu to see different part of Japan.

Any recommendations on the places mentioned above for family trip would be much appreciated. Thanks in advance!