Best time of Monsoon. You can travel Maharastra yet avoid crowdy places like lonavala and go for some adventure treks spread across the state. Or may be Madhyapradesh Pachmarhi etc. Kerala in any case less crowded in many parts of it like thekkady and ramakkalmedu side. This way you can avoid crowds and yet have an amazin trip.
I'd say travel to Uttarakhand but not the far fledged places. Nainital, bhimtal, and certain places around are fine and in fact great to spend monsoons at. But deter going to places that have long stretches of hilly roads because the mountains are vulnerable to landslides and that's dangerous.
Totally agree with you, I have planned and booked a trip to the spiti valley and chitkul, but given the news of landslides I guess I have to check out for other options now