Scotland Recommendations

Hi,

I was planning to go to Tignes this Christmas for a week. But with the latest travel restrictions and continuing uncertainty, and not unlikely lockdown soon in France, I won't.

I am based in London and have never been skiing in Scotland. Can anyone recommend sensible options please. Which resort, or resorts? How to get there - drive or fly and hire a car? Where to stay? Is Christmas a sensible time?

Thanks