There are a whole host of Original Trilogy ‘Making Ofs’ / BTS documentaries in here mate, to add to the list:-
Guide to Star Wars Documentaries and Special Features
^ not just in the Rodney’s Google Spreadsheet - though also in benduwan’s post in the above linked thread too 👍
ZkinandBonez’s YouTube/Vimeo/etc. finds for Original Trilogy making-ofs, documentaries, promos, etc thread is also well worth a read too for seeing if there any more to add your list.