Northeast is best (starts from himachal Pradesh ,sikkm, meghalaya, mizoram,arunachal Pradesh, nagaland, thiripura)other country in this list you can travel by road without passport port Nepal, Bhutan,the states in the list contains mountain, snow mountain, valleys, rainforests, tribes, awesome old cultures etc definitely you'll enjoy this place visit northeast of India
Noth-East is the best place for a road trip. I went there with my family but a lot of solo travelers made me feel that it's a lot more fun to travel there by road and I must say it is safe.
Leh Ladakh
Spiti Valley
Northe East
Sikkim
Rajasthan Tour
Bangalore-Mysore-Ooty-Coorg
Kerala shoreline
Hampi
Mumbai-Goa
Srinagar-Pahalgam-Sonmarg-Ladakh
Manali-Leh cycling