Start by deciding whether snowfall is essential or whether you mainly want cold weather, mountain views and a relaxed winter break. For easier access to snow activities, Manali and the Shimla region are practical choices, while Narkanda provides a quieter snow-focused alternative.
Choose Dharamshala, McLeod Ganj or Kasauli if you prefer less severe conditions and easier sightseeing. Dalhousie and Chail suit slower hill-station holidays, while Kalpa is better for travellers prepared for longer drives and more unpredictable winter access.
Also consider your trip duration, cold tolerance, road-travel experience and need for tourist facilities. A destination that matches these practical needs is usually a better choice than selecting a hill station based only on photographs of snowfall.