The himalayas run 2500 kms through at least 8 Indian states ! The middle and upper himalayas are naturally the best. So , the higher the town/ place, the better the view. The middle Himalayas have lush meadows and pine forests. The lower/ Sivalik himalayas has loads of human being... in the form of tourists mostly !
If you are looking for quiet and stunning places, there is Rangdum, Sumur, Alchi in Ladakh; Naldehra, Sangla, Sarahan in the Shimla Region; Kalpa, Rekong Peo in Kinnaur; Gwaldham, Munisiyari, Pithoragarh, Mukteshwar, Binsar in Kumaon-Uttaranchal; Harsil, Auli, Dodital, Mori in Garhwal- Uttaranchal; Ghoom, Kalimpong, Mirik in Bengal, Lachen- Lachung in Sikkim, Tawang in Arunachal Predesh... and there are so many more.