I like Davis very well. She’s a good storyteller, and keeps me wondering what’s next.
Lois McMaster Bujold has written enough books set in the Vorkosiverse to keep you busy reading for a year, if you have enough self-control not to gulp each one down. Most people who’ve tried her works can’t imagine that, though. Those books are considered “space opera”, but in recent years she’s begun to have a lot of “crossover” romance-reading fans. The only other author (of recognized quality) who has managed that is Catherine Asaro (who mostly icks me out - too much romance, and too melodramatic). You can learn (much!) more about Lois at her website
She has also begun writing a … well, it’s not a series, exactly, but that comes pretty close. There are two books out so far: The Curse of Chalion and Paladin of Souls. The setting is an alternate universe, technology level late Middle Ages. The third book in this setting will be out in about six months, she says. The first two are set in an alternate Earth’s exquivalent of Spain, as the Christians regained ground from the Moors - but in the Chalionverse, there’s a different theology. And that’s all I’ll say about that. Curse of Chalion is out in paperback; Paladin, apparently not yet - I just looked at Amazon.
Another author you would probably like is Mary Doria Russell. She has two books in print, and they are a duology; one story in two books (but you won’t feel suspended in midair at the end of the first). The two books are The Sparrow and Children of God. Russell is one of the few living authors I consider to be good enough to compare with Bujold. Both are outstanding at characterization, but are also convincing storytellers. Russell’s third book should be out “soon”, but it is historical fiction, and bears no relationship whatever to the first two. Russell is popular with book clubs because there is so much to process in her writing.
It wasn’t always true, but there is lots of serious fiction to be found in the SF&F (science fiction & fantasy) genres. I know that there are Dopers who are as much Bujold fans as I am (and I don’t mean just the other Bujold listies who are here), so I was surprised not to see her books recommended yet in this thread. I usually have to logoff before I get to this forum.
I do endorse the recommendation of Eric Flint’s 1632 series (though not many of his other series, alas)