S.T.
We did public school for most of the years becuase I need to work to help provide for our home (expensive cost of living in NY) but my daughter began online schooling in 11th grade with Liberty University online academy. It costs about $200 a month and she logs on and get her work done, they do the tesing and they issue the diploma. It's worked best for us for my daughter. It would not work for my second child as there's a lack of discipline needed to get the work done.
As another post said, there is bound to be changes in the coming 4 years so while it's fun to see what's available don't get too attached to anything!