When you don’t often read older science fiction, it is wonderful to get a pleasant surprise, such as with A Matter of Oaths by Helen S. Wright.
Review of the Imperial Radch series: Ancillary Justice, Ancillary Sword and Ancillary Mercy. One of the best space operas of the 21nd century.
Review of City of Stairs by Robert Jackson Bennett. City of Stairs a fantasy spy thriller about magic, history and colonialism. Surprisingly funny and entertaining with great worldbuilding and wonderful characters.