I’ve found it complicated and often hard to follow, but these recent pieces have been very helpful:
Ankit Panda, “The Political Geography of the India-China Crisis at Doklam,” The Diplomat
Jeff Smith, “High Noon in the Himalayas,” War on the Rocks.
Iskander Rehman, “Hard Men in a Hard Environment,” War on the Rocks [background information on the military balance and strategies].
Taylor Fravel interview on Rediff.com.
Sushant Singh, “Motorable track at the centre of tug-of-war with Beijing,” Indian Express.
Interview with Shivshankar Menon in the Hindu.
Rohan Mukherjee, “Sikkim Stand-off: What Explains China’s coercive diplomacy?” Business Standard.
Manoj Joshi, “On India-China Himalayan face-off, China may just have a case,” Indian Express.