Psssh, there is nothing available right now. Well, not in Hyperion anyways...
I checked all 3 residential districts, everything's taken, even the big ass manors. There's probably one or two here and there, but nothing cheap to start up.
I guess it took me too long to become a gillionaire lol
To wait until new plots or personal housing becomes available. Not worth it really if the only perk is chocbo training...