I was not home schooled, but did go to a Christian school, so that might be the next best thing? I once read a biography about a late Creationist who I learned was also a Geocentrist. His view was that the bible supported Geocentrism over Heliocentrism, and had some science to back it. The more I investigated, the more I realised there is no reason to believe in Heliocentrism, and that this learned man was right - Geocentrism was quite a scientific belief, and also scriptural.
I think in the same biography (if not another one), it also mentioned the man's friends had asked him why he didn't go the full way and become a Flat Earther. Intrigued by this, I investigated what the bible actually said, and learned it did indeed imply a Flat Earth, rather than a ball-Earth (I previously had fallen for the lie that Isaiah's "circle of the Earth" translated to "ball"). It was difficult for me to accept that the Earth was flat, so I prayed about it, that God would reveal to me the truth of the matter. And I read about it - both scripture and the science. And as I read, I realised many of my "scientific" objections could be readily overcome. The more I read about it, the more convinced I was there was no need to believe in a ball-Earth, and scripture did indeed imply a Flat Earth (or at the very least a foot-stool Earth).
So to answer your question... the internet, I guess!