Thirding the recommendation for Ruth Downie's
Medicus and sequels, if someone might be thinking of picking them up.
I really liked the 1st one after having read it when it had been a freebie several years ago, and went to the library for the next few. (ETA: Huh, apparently I bought #2 twice over when it was on sale for 99 cents in multiple stores. I must have really liked #1.)
They're couponable @
Kobo as well, IIRC (though sometimes the Kobo search mistakenly marks things as couponable which aren't), and I think I might use up some of the deep-discount contest codes on them while they're still working.