Several books by Angélica Gorodischer are $1.99 on Weightless Books (for one week)
Kalpa Imperial (translated by Ursula K. Le Guin):
https://weightlessbooks.com/format/book/kalpa-imperial/
Trafalgar:
https://weightlessbooks.com/fiction/trafalgar/
Prodigies:
https://weightlessbooks.com/fiction/prodigies/