Calvin's Commentaries Volume XXI: Galatians-Philemon

First and Second Thessalonians (Black's NT Commentaries) by Ernest Best

New Testament Commentary: Thessalonians, Timothy, Titus by William Hendriksen

Thessalonians (New International Commentary on the NT) by Leon Morris

Thessalonian Epistles: A Call to Readiness by D. Edmond Hiebert

Thessalonians (International Critical Commentary) by James Frame