God's Wisdom for Navigating Life: A Year of Daily Devotions in the Book of Proverbs

Tim Keller has a great one that goes through Proverbs. God's Wisdom for Navigating Life You also could look at doing something like a study on spiritual disciplines like 10 Questions to Diagnose Your Spiritual Health by Donald Whitney. That would be a shorter book to work through and give you a change of pace before diving back into a long devotional.