Ethiopian still has six -300's chugging around Africa and the Middle East on what may not unreasonably be described as secondary routes, with the 777, 787 and A350's now on the premium runs.
Are the Ethiopian 767s still configured with 8 across in coach?
AFAIK they were the only operator to do that.
The 767 was often the most popular aircraft with SLF due to the 7 across coach seating and the relatively roomy seats it provided. I did a per-delivery flight test on on of those Ethiopian 767s a long time ago - I could fit into one of their coach seats but it was tight (and I'm not a large person). Sitting there for several hours would have been horrid...