This is literally my favorite letter that St. Paul ever wrote! I'll be using Michael Gorman's book "Apostle of the Crucified Lord" to journey through the Letter to the Galatians with y'all! Enjoy!
https://www.amazon.com/Apostle-Crucified-Lord-Theological-Introduction/dp/0802874282/ref=sr11?dchild=1&gclid=Cj0KCQjw59n8BRD2ARIsAAmgPmIpyDW8u-sQ-mRdO3zjYZtpUptUumNJaf5ocspbS6Kr8-DEZlzNNUaAn5bEALwwcB&hvadid=241634400853&hvdev=c&hvlocphy=9028297&hvnetw=g&hvqmt=e&hvrand=2084455539666652237&hvtargid=kwd-809543375&hydadcr=8269_10375144&keywords=apostle+of+the+crucified+lord&qid=1603734668&sr=8-1&tag=googhydr-20