Commentaries on Plato

Is there anything like CAG but for Plato?

I’m sure it’s reasonable to think that anyone who could answer this question would know what ‘CAG’ means, but I don’t and I’m curious.

If by CAG you mean the ancient commentaries on Aristotle, there are quite a few in the same series on Plato. For example, Proclus, Hermias, and Olympiodorus. Here is one example: https://brill.com/edcollbook/title/901?language=en

Here is another reference on CAG.

http://www.ancientcommentators.org.uk/concordance-with-cag.html