From what I have found in the last 2 weeks is there is nothing that will help with this problem. I even tried resetting my pc which actually fixed a different game but no change to destiny 2. Whenever my game does crash however it is always around a large group of taken. It's crashed a couple of times on the nightfall "lake of shadows", and it crashes every single time during the astral alignment event (the scorn portion always runs fine). Sadly only a few amount of people have reported the problem happening