I am 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 118 (in no particular order). Feel free to mention any that you find helpful in the comments section.
Analysis by C. J. Labuschagne: https://www.labuschagne.nl/ps118.pdf
William Barrick’s notes: https://drbarrick.org/files/studynotes/Psalms/Ps_118.pdf
The Fathers on Psalm 118: https://pursuingveritas.com/2019/11/12/the-fathers-on-psalm-118
Psalm 118 devotional: https://www.generations.org/devotionals/182