A Court of Mist and Fury by Sarah J. Maas
The author of this book has a command of the English language. Other than that it is almost a perfect case of how to write a bad book. First make it way too long. Add in characters that you don't care about along with others that you can't distinguish. Set it in a fantasy world with seemingly different values, but have the main characters adopt trite modern values. The novel seems to be a nonstop discussion of the protagonist's sexual desires and activities. She manages to lust after and sleep with those on both sides of a big conflict. She also is able to go into the mind of people. Some of these "people" have wings. There are also some weird rituals like mating vs. marriage vs. consort. It is just bad and confusing.
A girl from a down on their luck family goes hunting. She manages to bag a couple animals, including one that she fears may be a fairy. It turns out it was, and she is abducted by the fairies. She is given an option to live with them instead of being killed. She gets to know her captor and falls in love with him. She also learns about the court intrigue and challenges going on there. She is actually in a role to help end a curse by falling in love with one after an unprovoked killing of a fairy. The book takes a long time to get this far with a lot of romance on the way.
The Girl of Fire and Thorns begins with the marriage of a 16 year old fat princess to a King. They meet each other for the first time on their wedding day. He is a "nice" man and a leader of a religiously conservative kingdom. She is the bearer of a "godstone" when gives her some power, but requires her to perform an act of special service. She travels with him to his kingdom, encountering challenges on the way. She gradually gets to know her entourage as well as people in her husbands kingdom. (However, he keeps their marriage secret for some time.) She also learns more about her role and religion and endears herself to her stepson. One night, she is kidnapped and brought out into the wilderness. There she learns more about the conflict in the greater kingdom. She soon becomes a leader of a vigilante group. They uncover perverse alliances and nearly get killed before completing the battle royale with the help of some discovered magic. She needs some help of stones similar to "Bad guy" magic to use with her "good guy" magic to defeat the bad guys and their magicians. It then suddenly ends, all nicely wrapped up, but ready for a sequel. This is a rare book where an overweight girl that loves sweets is an action hero.