Dagger and Coin series by Daniel Abraham. Very GoT like with differing POVs. Once upon a time the world was ruled by dragons and they created 8 or 9 difference races of man to be their slaves. There are swords, actors, bankers, mercenaries, ancient gods, and the rise of a tyrant from the tyrant's POV. What more could one want? The first book is 500 pages according to Goodreads. They aren't very action paced so may be as boring as GoT.
I just finished the
Land Fit for Heroes series by Richard K. Morgan. The main character is gay in a homophobic world so its a nice twist on the usual man gets girl story. It has kinda-dwarves and kinda-elves and drifting masses of kelp that hatch lizardmen and dragons. Goodreads says 391 pages for the first.
War God series by David Weber. I don't recall dragons but the hero is an orc swordsman. The first book is in the Baen free library. A new novel in the setting is soon to be published (or maybe has been already.) 575 pages for the first, but the second is under 400.
David Daglish writes straight DnD fantasy where you can practically hear the dice rolling as you read. IIRC they are relatively short.