@Kaffe@chitter.xyz We're mostly dripfed details (rather than given a comprehensive overview) of the society, but the primary alien race in Anne Leckie's 'Provenance' is an aquatic species, and what we're told about them and how it informs their characters, plot & approach to space travel & other cultures is very well written.
(Its in the same setting as her Imperial Raadch trilogy, and will spoiler a large political event that happens in Book 3, but those books aren't required to read/understand Provenace)