I finally read through all 9 main books of The Expanse and I cannot recommend them highly enough. for fans of the show, the books have so much more. including a 30 year time skip. the events also happen in a slightly different order than in the series, which, to me, changes the overall story more than I expected.
if you like sci-fi that doesn't skimp on the physics, pick up a copy of Leviathan Wakes (looking at you, Andy Weir fans)
currently reading through Asimov's Foundation series of novels and I'm loving them so far