Quiet mountain destinations near Delhi?

Need some road trip suggestions from Delhi for a 2N/3D getaway with my girlfriend.

We’ve already done Rishikesh, Haridwar, Mussoorie, Dehradun, Nainital and Amritsar, so looking for something different this time. Preferably a quiet mountain side place with pleasant weather because Delhi heat is unbearable right now.

Would love somewhere peaceful, scenic, not overly crowded, with decent hotels/hostels where we can just relax, drive around, eat good food and spend quality time together.

Not looking for hardcore trekking or packed tourist spots. Just a calm escape with good vibes and nice views.

Would really appreciate recommendations from people who’ve actually been to such places recently.