I'd recommend this book (and series): 本好きの下剋上 https://www.amazon.com/gp/aw/d/B00TKIAMYW/ref=tmm_kin_title_0?ie=UTF8&qid=1615796582&sr=8-3

If you're trying to gauge which books are the right level for you, you can get a 2-month Kindle unlimited subscription on amazon.co.jp for 99円. I think there's also a free month deal for new accounts. It's great for sampling books and saving some favorites.