The Chronicles of Narnia are amazing.
And apart from the Bible, try a different variety: LotR, The Divine Comedy, Dostoyevsky, Kierkegaard, St Augustine, Sir Gawain and the Green Knight, George Herbert, Four Quartets, The Lusiads, Paradise Lost, Tolstoy, C. S. Lewis's apologetics, Chaucer, Silence (Endo), Tolentino Mendonça, The Cloud of Unknowing, some of Wilde's stories, Pascal, Aquinas, Boethius, Kempis, and so many others.
Also, if you like graphic novels, I have recently read The Mythmakers (about Lewis and Tolkien's friendship) by
@hendrixart, a fabulous book - he does some amazing work.