This review covers the main series as I have not read any of the prequel materials. Normally, I would review each of the individual books, then the series as a whole. In this case, to prevent spoilers, I will be reviewing the entire series. When Celaena is rescued from the slave mines in order to take part of a competition, by the crown prince Dorian, she is thankful. All of her opponents are men - thieves, assassins, brutes. However, something dark is lurking in the castle and killing off the fighters one by one. She must kill in order to survive, while also avoiding what is killing her competitors. In the final fight of the competition, it brands her and sets her on the path to her destiny.
Similar Books:
Graceling Realm Series by Kristin Cashore
The main character from Graceling reminds me of Celaena.
The Ascendance Trilogy by Jennifer A. Nielson
Although the main character is male, the cutthroat competition is very similar to Throne of Glass.
Rule Series by Ellen Goodlett
The politics of the kingdom remind me of the politics that occur in the Throne of Glass series. Bonus points for LGBTQ+ normalization of relationships.