A book thread, wonderful! This list may turn into a novel, be warned. I was always a reader, but when I started smoking cannabis in my mid teens I truly became immersed in the books. You may need to turn down your nerd alerts a hair, because there is about to be a big list of fantasy authors.
Brandon Sanderson it the top fantasist of the day in my mind. Prolific producer and it's all wonderful. Although if Pat Rothfuss would get cracking on that next Kingkiller book my mind could be changed. Steven Erikson for epic gritty fantasy. Cheesy as they are, Weiss and Hickmans books put the dork stamp on me early on, and it never left. Terry Pratchett's word play and humour have influenced me deeply. Although I would say for any fans of puns Spider Robinson's Callahans books will give you some chuckles. Neil Gaiman of course, and his team up with Sir PTerry, Good Omens is always a Christmas time read for me. Jay Kristoff and Mark Lawrence are also good fantasy writers.
As for books without swords and wizards.
The Sisters brothers by Patrick DeWitt
The Golden Spruce by John Vaillant
The One Straw Revolution by Masonbu Fukuoka
And if you want an unflinching, honest story of one woman's counter culture upbringing North of Normal by Cea Sunrise Person is wonderful, although heart breaking at times.
So many books, so little time!