The best underrated epic fantasy books with "unlikable" female characters

It's difficult to discuss what might make Baru unlikable without delving into spoilers, but that's fine because you must see this book through to appreciate it fully.

Baru, an accountant, finds herself caught in the jaws of empire when her homeland is colonized and one of her fathers is killed. Cold and calculating, Baru desperately claws her way to power in an attempt to fight empire from within, and along the way, must reckon with how much of herself she is willing to sacrifice for her goals. I can’t emphasize how bleak this book is, and part of that comes from watching Baru eat herself alive and be awful to other people.

This book is told in first-person from the perspective of Dunleavy, a pretty judgmental young woman who is not happy to be partnered with the infamous Shintaro Tarish. She's stubborn, inexperienced, naive, a little full of herself, cold, overly logical, and has little to no emotional intelligence. She also takes everything in stride, has an incredible dry wit, and is genuinely caring.

She's the type of character who will make you feel so many emotions, because she's so real she leaps off the page. There were times when I audibly groaned because Dunleavy's actions were just so terribly frustrating. I was delighted by her and her slow-burn friendship with Shintaro, made so tantalizing because Dunleavy can be so terrible to him sometimes!  

In this world inspired by the French Revolution, we witness the start of the revolution, the fall of the monarchy, and the reign of terror that follows, all through the eyes of Eliste vo Derivalle, a young noblewoman who starts out the book highly prejudiced against non-nobles and slowly learns humility by the end of the novel.

Having grown up immensely privileged, Eliste lacks useful skills and is constantly dependent on others. Her entitlement for the majority of the novel makes her difficult to warm to, but she's not an inherently bad person: She's clever, resilient, spirited, and treats her maid kindly. As she's put through the wringer, she unlearns her privilege and emerges a far more interesting woman trying to work out what it means to be in solidarity with others.

In a rather terrifying world of sentient gods, Carillon is an impulsive and short-tempered orphaned runaway who finds herself at the center of a magical plot that involves the thieves' guild, the alchemists' guild, her family, and a terrifying pantheon of gods.

Though a skilled thief, Cari rarely thinks things through and, more often than not, finds herself in trouble as a direct result of her actions. She's also one of those characters whose past comes back to haunt her precisely because she hasn’t properly confronted it. 

Though naive and sheltered, Felicita nonetheless makes the courageous decision to run away from home to escape an arranged marriage.

One of the things I loved about her character development was that even though she's committed to escaping her privileged upbringing, she still yearns to return and genuinely considers doing so multiple times–she longs for the comforts of wealth, and she's often surprised by just how difficult it is to live like the working class, sleeping on a hard floor and scrubbing dishes for ten hours a day for meager pay. She's not someone who immediately sheds her privilege and judgment and blends seamlessly into her new surroundings. Rather, she struggles immensely and has a huge blind spot when it comes to what her wealthy family is capable of.