You might look into "Two Necromancers, a Bureaucrat, and an Elf" by L.G. Estrella. It's a bit short, but it's only 1.99 from Amazon. It's about a necromancer who decides to "go straight" by working with a nearby kingdom which offered a pardon. However, he only gets the pardon if he helps handle some of their dirty work first. It has a couple of sequels, but I've only read the immediate next in line "Two Necromancers, an Army of Golems, and a Demon Lord."
There's also "The Dark Lord's Handbook" by Paul Dale. It's about the eternal struggle between good and evil...and when Evil loses yet again, Good keeps on rubbing Evil's face in it. So Evil has created a handbook to keep Dark Lords from falling into the common mistakes that lead to their downfalls. And now it's another young man's turn, as he's destined to grow up and try to conquer the world. It doesn't hurt matters that the forces of Good are no bunch of angels themselves. It also has a sequel, "The Dark Lord's Handbook: Conquest," since the world's a big place.
"The Dungeoneers" by Jeffery Russell is what happens when genre-savvy dwarves treat dungeon-diving as a business, complete with releasing a cartful of chickens to check for traps, and a simple city guard gets ordered along due to a mixup. Pretty good if you want a bit of a deconstruction of some of the fantasy tropes.
Michael A. Stackpole's "Once A Hero" isn't anything particularly special. It's not bad, but it's a thoroughly genre piece of work that somewhat explores the future consequences of when the hero has saved the day, toppled the evil empire, put a benevolent ruler on the thrown, and ended the feuding of warring merchant houses.
Since someone mentioned time travel, I also recommend the 1632 series. A piece of alien artwork breaks up and falls to Earth, causing a 1999 coal mining town in Virginia to swap place with a piece of Thuringia, Germany from the year 1631. Stranded in that town, the survivors of the "Ring of Fire" event go from making sure they survive to thriving. It's not some simple historical fixfic where the modern man solves everything, however. They don't have nearly the technology to bring things up to the standards of when they left and the proliferation of encyclopedias means some hostile groups are getting a fair shot, too.
Finally, and almost completely out of the fantasy genre, I would like to recommend "The Henchman's Book Club" by Danny King. It's a funny look at the world of James Bond flicks and Rambo movies from the perspective of one of the faceless minions they mow down so often. Specifically, a minion who starts a book club for himself and other such minions in that line of service, and how the camaraderie it inspires helps him go from redshirt to mauve. I know I put this last, but that's due to it not really fitting what you wanted. Still, this is one I'd recommend anyway.
If you want more along the lines of superheroes, I have plenty of that as well. All those fantasy sections above only came from between August 2015 to May 2016 and left out a lot of superhero stuff.