Comment by nephihaha

Not many high schools do ancient Greek, other than a handful of private ones, so I would consider gearing it a lot more towards the Koine Greek market. Then you would be able to attract people from colleges and universities where people are doing it as part of a religious studies/divinity course.

Latin appears to be undergoing an unexpected revival of interest just now... So there nay be a bigger market than you think. To advertise it you could sponsor various relevant YouTube videos.