The chapter on Colossians in A Biblical-Theological Introduction to the New Testament: The Gospel Realized is helpful for understanding the structure of the book. Listeners that want to do some real digging into the theological, history, and literary form of Colossians should consult Douglas J. Moo’s volume in the PNTC series. Two shorter commentaries worth consulting are N. T. Wright’s volume in the TNTC series, and Michael Bird’s in NCCS. As always, check out the Bible Project video on Colossians: https://youtu.be/pXTXlDxQsvc