I think Murakami’s books are a great suggestion. Magical realism, nowhere near sci-fi, but very easy to slip into. However, 1Q84 feels a bit like a heavy recommendation even if you’re a Murakami fan. It’s a bit more of a commitment and I think it helps if you’re familiar with his other stories before diving into it. I’d say try Hardboiled Wonderland first - I thought it stepped away from some of his recurring themes but still a good example of his style. Also a quicker read. He has a few anthologies might be good intros as well - I read two, Dance, Dance, Dance and The Elephant Also Vanishes, but I think he’s got some others.

Along the lines of magical realism, Kurt Vonnegut seems like a great recommendation too. His books incorporate a bit more sci-fi - Galapagos, Cat’s Cradle, Sirens of Titan, slaughterhouse five, …