Yes, some people think of this series as package filler; others have found a few nuggets that were very influential; some have found a treasure to mine for a history of interpretation ... but here is a list of stalled segments of this significant collection:
My personal favorite to push in this list is Jeremiah and Lamentations ... I love the Lamentations set to music for Tenebrae and so love anything that helps me understand them more thoroughly.
Classic Commentaries and Studies on Jonah (8 vols.)
Classic Commentaries and Studies on Hebrews Upgrade (15 vols.)
Classic Commentaries and Studies on Acts Upgrade (36 vols.)
Classic Commentaries and Studies on Leviticus, Numbers, and Deuteronomy Upgrade (14 vols.)
Classic Commentaries and Studies on Jeremiah and Lamentations Upgrade (13 vols.)
Classic Commentaries and Studies on the Psalms Upgrade (30 vols.)
Classic Commentaries and Studies on Johannine Literature (18 vols.)
Classic Commentaries and Studies on Luke Upgrade (22 vols.)
Classic Commentaries and Studies on the Minor Prophets Upgrade (11 vols.)
Classic Commentaries and Studies on Matthew Upgrade (17 vols.)
Classic Commentaries and Studies on Isaiah Upgrade (18 vols.)
Classic Commentaries and Studies on Genesis Upgrade (25 vols.)
Classic Commentaries and Studies on the Pentateuch (21 vols.)
Classic Commentaries and Studies on Proverbs Upgrade (15 vols.)
[Y]
[Y][Y]
[y] This set also effectively contains two classic commentaries - one on Job and one on the Ten Commandments: https://www.logos.com/product/45411/select-works-of-james-durham
I'd love it if the Psalms Upgrade included the following book from Nichol's Series of Commentaries (many of which are already in Logos though they're hard to find):
It contains works by 3 puritans in one volume and is on archive.org:
Samuel Smith on Psalm 1Thomas Pierson on Psalms 27, 84, 85 and 87.William Gouge on Psalm 116.
Spurgeon's comments on them:- 'Very popular in its day, and worthily so'- 'one who stood in the front rank'- 'advantageous to the preacher'
In 2014 I had previously suggested some titles for a Classic Psalms Commentary Upgrade, and it looks like one of them has made it in.