Savoie has everything from summer-only mountain refuges (no-frills huts) and chalets to grand spa hotels that date to the belle époque. There's a holiday rush during ski season and in July and August; reserve well ahead (and prepare for eye-watering in ski resorts like Val d’Isère and Chamonix). Many areas have limited choice outside these periods (particularly the regional parks).
Chambéry and Annecy each have a good year-round hotel scene.
www.savoie-mont-blanc.com Can help with bookings for otherwise difficult-to-contact mountain refuges (no-frills huts).