If you live in abject Logosian poverty, but have a sweet-tooth for Josephus greek volumes:
https://www.logos.com/search?filters=author-1225_Author&ssi=0&sortBy=Relevance&limit=30&page=1&ownership=all&geographicAvailability=all
The two inexpensive resourses listed above are from scholarship in the late 1800s ... a greek interlinear, and cross-references, both inside Josephus, and against the OT.
The interlinear is useful in your BWS for greek lemmas (LXX/NT) ... lists out at the bottom of the BWS ... showing external usage around the same time period as the NT. The cross-references are great in a CitedBy tool, quickly showing common usage while visiting a verse.
There's a similar Philo interlinear, but not so affordable. It too brackets NT greek usage, in a BWS.
And a thanks to Mr Milkman and Dave for accidental discovery, in another thread today.
Interesting factoid from Logos.com:
"William Whiston (1667–1752) succeeded mentor Isaac Newton as Lucasian Professor of Mathematics at the University of Cambridge. He was the author and translator of numerous works, including The Works of Josephus."