I'd love to see some, but until they are a thing I'll eventually convert the following:
I am using a mixture of :
A) Wargmaes Factory Numidians (Out of production)
These are generic, tunic wearing guys, with tons of empty hands for customisation. They're old , ugly, clunky, and absolutely horrific. I love them and to me at least, look generic enough to be anything in the Mediterranean.
B) Victrix Numidians with head swaps
Victrix offers a lot of customisation. Sub out some of those numidian heads and throw on some basic looking roman or greek ones, that can be used as Jews. Germans might have more beards if you want that, though they're more wild.
c) Random victrix armored roman bodies with conversions
Just so it looks like the odd guy looted
d) Black Tree design minis
Black Tree Design has a bunch of ancients, and some of them are very, very generic looking. Persian peasants, phygarian infantry.. These could just be used as citizens
For capes and the like, I'm using victrix stuff I have left over from cavalry sets.
It'll be a big conversion project, because sadly there is nothing out there in 28mm!