Scripts
Scripts On Screen has a large searchable database of filmscripts you can read. Most are free. Scripts that are for sale are clearly marked “$” so you can avoid them if you only want the free ones.
Blogs
John August
https://johnaugust.com/
Go Into The Story
https://gointothestory.blcklst.com/
China Hollywood Greenlight
https://chinahollywoodgreenlight.com/029-writing-for-china-hollywood/