The person that literally wrote the book on benzo tapering is Dr. Heather Ashton. (The Ashton Manual)
https://www.benzoinfo.com/ashtonmanual/
Anyone wanting to get off benzo's should take a look at it. (free online) It's well researched.
I wish there was a way to 'paste' this link to the general anxiety / pain forums as I think it would help a lot of folks.