Intertextuality has been showing up in the forum recently. There's the interactive tool for NT > OT, etc. And also searching for combinations.
But for anyone interested, what is the metric used for assigning the various labels? That's not easy to find in Logos. In the Logos interactive, there's an 'About' button (top-left-ish) which has a good discusson of the labels; just not how they're derived. It appears, the user is to do the final 'metric-ing'. (Taken from https://www.logos.com/product/10225/old-testament-quotations-and-allusions-in-the-new-testament )
But the resource on Pseudo-Philo spends a full in-depth chapter (#2) on the subject (followed by later jewish writer patterns).
Do You Not Remember?: Scriptures, Story and Exegesis in the Rewritten Bible of Pseudo-Philo
It analyzes 3 authors discussion on the 'how': Michael Fishbane, Richard Hayes (in Logos; an example 'echos' list below), and Michael Boyarin. Much of the discussion is within the Old Testament > 2nd Temple, as to who's using what.
Fishbane's 'Biblical Interpretation' definitely belongs in Logos.

Off-Topic: The Logos.com search engine really has problems. You can type in the title of a book (Jones, above), it literally has a drop down choice for the book (one), and selecting the dropdown choice, doesn't locate the book .... and it IS in Logos.com.