As to OP's question...
Jim Butcher is the first one that comes to mind. He has a fully completed 6 book "Epic Fantasy" series that (in true Butcher fashion) gets better with each book. Then you have 16 Dresden Files books to catch up on. With the Dresden Files, they start out good... then start to get better and better to the point that you read them so fast the middle 6 books blur together as if one big story.
Scott Lynch's Gentleman *******s series is good and I love the characters. However, my biggest beef with Lynch is his 3 pages of descriptions of everything. He needs to just leave more to the reader's imagination sometimes. But they are fun books to read.
These are the series I am caught up on and would recommend to anybody:
Jim Butcher:
The Dresden Files - Storm Front, Fool Moon, Grave Peril, Summer Knight, Death Masks, Blood Rites, Dead Beat, Proven Guilty, White Night, Small Favor, Turn Coat, Changes, Ghost Story, Side Jobs, Cold Days, and Skin Game
The Codex Alera - Furies of Calderon, Academ's Fury, Cursor's Fury, Captain's Fury, Princeps' Fury, and First Lord's Fury
Scott Lynch:
The Gentleman *******s - The Lies of Locke Lamora, Red Seas Under Red Skies, and The Republic of Thieves
Patrick Rothfuss:
The Kingkiller Chronicle - The Name of the Wind and The Wise Man's Fear
Anthony Ryan:
Raven's Shadow - Blood Song and Tower Lord
Brandon Sanderson:
Mistborn - The Final Empire, The Well of Ascension, The Hero of Ages, and The Alloy of Law
Stormlight Archive - The Way of Kings and Words of Radiance
I just bought book 1 of the Lightbringer series by Brent Weeks as my brother told me it is very good. I also still need to catch up on Sanderson's other books as well.