I was having this crash constantly and what fixed it for me was deleting SSE Fixes, SSE Bug Fixes, eFps - Anniversary Edition, and eFps - official Patch Huh. I'm not sure if the Efps mods needed to be deleted, but I deleted all 4 of those and I haven't crashed since. I hope this helps because I was on the verge of a mental breakdown because my Skyrim was running smooth before I downloaded these few mods. I do still use SSE Engine Fixes and EFps - Exterior Boost.