Try Srinagar, Kashmir. I went there at last December. Summers are Green and has totally different vibe than winters. It is perfectly safe. Army is all over the place!
Although, don't expect luxurious hotels and Ola, Uber and Zomato etc. But at the same time expect tourist prices (higher than usual) just like any other tourise zone.
Gulmarg, Pahalgam and Srinagar. Make Srinagar as stay point and travel to other two places day basis.