There is no better place to find life than in God's word. Romans 10:17 says "faith comes from hearing the message, and the message is heard through the word about Christ."
So, our first recommended book will always be the bible which we believe is the infallible word of God (2 Timothy 3:16).
Each of us is wired differently, with different backgrounds, experiences, learning styles, and perspectives so we will continue to add books to this list from a variety of writers and hopefully help you connect with some material and writing styles that resonate with you.
Any book recommended here is one that I have purchased and read myself. I get no compensation of any kind for making these references. These are just resources that have spoken life to me that I would recommend to anyone.