This is a bit late, but here are the top five books I read in 2018, followed by links to other best books of 2018 posts. You are bound to find some good suggestions.
My Top Five Books
1. Faithfulness and Holiness – J. I. Packer & J. C. Ryle
2. How Should We Develop Biblical Friendship – Michael Haykin & Joel Beeke
3. Reset – David Murray
4. The Rest of God – Mark Buchanan
5. The Art of Rest – Adam Mabry
Other Lists
Tim Challies (includes lists from several bloggers)
Happy reading!