The First in my list is obviously Manali. I have a strong connection with this place because mostly I visit there and it's a beautiful place for travellers.
To reach manali one could take an overnight bus from Delhi or chandigarh. Prices from Delhi of AC Volvo is around 800-2000.
Morning you will reach Manali bus stand.
From there you could take a shared auto or taxi and could reach to Mall road. If you are a solo traveller then I would suggest you to take hostels. Because there are many hostels and it will cost you around ₹250-₹450.
Explore some temples like Hadimba devi temple, mall road and visit old manali.