Assuming you are located in or around Delhi I would say try Dalhousie, Chamba, Khajjiar, Pragpur, Bundla, Andretta, Amritsar or Upper & Lower Dharamshala
Mandi- Karsog Valley Banjar Valley - Kullu Manali Valley where you will get to visit so many things like Prashar Lake, Rewalsar Lake, Mandi, Janjheli, Shikari Devi, Chindi , Karsog Valley , Jaori Pass, Shoja, Banjar, Kullu, Manali site seeing.