walking dead in a mine in the sky...
Cats in the jungle
Dogs in the barrens
Knights of reflection in the mistwood...

just a few of the nicer places to get money.

Once you can live and not die in the feywood though.. it is the premier place... at least for me. I had thought cats in the jungle was, because they dropped 330~ gil drops in packs of 1-4 commonly once chain level was increased.

However those knights drop 1-2 or 3 pinions once chain level is increased and i think they sell for 1050...