I have been working on a commentary on the Psalms. I have decided to compile some helpful links that I discovered during my research. It includes a mix of exegetical and sermonic links. Here is what I have for Psalm 45 (in no particular order). Feel free to mention any that you find helpful in the comments section.
The Fathers on Psalm 45: https://pursuingveritas.com/2019/09/03/the-fathers-on-psalm-45
Ray Stedman., “The King in His Beauty,” Psalm 45: https://www.raystedman.org/old-testament/psalms/the-king-in-his-beauty
Into the Word with Paul Carter: https://ca.thegospelcoalition.org/into-the-word/psalm-45
Analysis by C. J. Labuschagne: https://www.labuschagne.nl/ps045.pdf
William Barrick’s notes: https://drbarrick.org/files/studynotes/Psalms/Ps_045.pdf Psalm 45 devotional: https://www.generations.org/devotionals/56