Cross-referencing the Aṭṭhakathā?

Greetings, All:

A bit of a technical questions for those who might know their way around the commentaries better than I (meaning that you know your way around the commentaries at all).

If I’m looking at a particular sutta’s vaṇṇanā and want to do some kind of a cross-check to see if its content–a jātaka/apadāna story that serves as background material for the sutta–is found anywhere, particularly, in another commentary somewhere, is there some resource, some reference tool that would help in this situation?

Thank you.