OK, here are some books I quite enjoyed in audio format. Since you didn't say what you like to read, I've only included fiction. If I posted at review on GoodReads I linked to that. I starred the ones where the reader really impressed me.
Tigana, by Guy Gavriel Kay, read by Simon Vance - Kay has made a name for himself writing what are basically historical novels in the idiom of a fantasy novel. Each novel is set in what could be called 'historic earth with the serial numbers filed off'. They have some light magic as well. Tigana takes place in The Peninsula of the Palm (a place like Italy) and follows the fotunes of a number of noble family members as they struggle against the foreign conqueror now in control. The name of this family, and the name of their home, has been magically cursed out of existence - only they remember who they once were.
A Stranger in Olondria by Sofia Samatar, read by Josh Hurley. See my review here:
Ben Hur by Lew Wallace, read by Todd McLaren
*Dark Matter by Michelle Paver, read by Jeremy Northam
The Moor's Account by Laila Lalami, read by Neil Shah
The Plague Dogs by Richard Adams, read by Ralph Cosham
The Dispossessed by Ursula K. Leguin
The Children of Time by Adrian Tchaikovsky, ready by Mel Hudson Decent SF.
A Canticle for Leibowitz by Walter M. Miller Jr. read by Tim Weiner One of my favourite SF books ever.
*The Stand by Stephen King, read by Grover Gardner, This is the extended version of the book - the 'author's cut'. Exremely well narrated.
Aurora by Kim Stanley Robinson, read by Ali Ahn
Bird Box by Josh Malerman, read by Cassandra Campbell. This is a rare situation where I think the audio format suits the book better than print.
Harder to categorize, or literary fiction:
Pavane by Keith Roberts, read by Steven Crossley
*The Dream Archipelago by Christopher Priest, read by Michael Maloney
*Grendel by John Gardner, read by George Guidall
The Magus by John Fowles, read by Nicholas Boulton
The Secret Agent by Joseph Conrad, read by David Horovitch. This was a sleeper hit for me, and unexpectedly turned out to be one of my favourite books read in recent years.
*Sharpe's Tiger by Bernard Cornwell, read by Rupert Farley. This is military adventure. The reading by Farley is superb.
The Man in the High Castle by Philip K. Dick, read by Tom Weiner Alternate history that takes place in the USA after it lost WW2. It focuses on various characters as they adapt to the new situation, and the characters are loosely connected. It has inspired a pretty good show on Prime (which doesn't follow the book).