If you're interested, a good way to start is to find a Josephus edition with a full index/reference section for subsequent study.
Or, if you have too much money and time for your own good, several Catholic publishers (and zondervan too) put out 'Complete Church Fathers' sets. A good one is usually $300+
There is a book - I forget the title - which has CSLewis, JFKennedy and Aldous Huxley meeting in the afterlife and discussing various points: good read.