I have the complete set of ‘ William Barclay’s’ (revised edition) Bible Commentary Study Series and actually find it enjoyable casual reading outside of just reference for study.
Before I retired I took a book to work for lunch break!
Spiritual men and women hunger for spiritual food, and feast on it wherever it is.
But always make scripture itself your primary source. All great books, no matter how great, are “pre-digested” food, with truth gleaned by other saints......from where? Mostly from their feasting directly on God’s Word.
First-hand revelation from God is always better than 2nd hand. It is yours, and cannot be taken from you. Both require the Holy Spirit though.