The Expanse books are great. The TV show is a pretty good adaptation too, but I love the portrayal of the characters in the books. A recent thing I started reading (first book release this month) is The Last Horizon series by Will Wight (author of Cradle, and Elder Empire books). This one's more of a sci-fi and fantasy blend, if you're into that sort of thing. In a nutshell, it's magic-as-technology, but with space travel.
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