I’m currently listening to all 50 something books of the Horus Heresy - Warhammer 40k stuff - it’s a bit of a mixed bag, different writers and different narrators for each book, however the underlying story is just plain epic.

If I was to recommend a set of audio books, I highly, highly recommend ‘The wandering inn’ by pirateaba - epic books by a proliferate writer - if you manage to get into it, there are hundreds of hours of great story read by a truly talented narrator (Andrea parsneu).

It’s been a real hit with myself and my circle!