I endorse home-schooling and peaceful parenting, but I acknowledge the fact that home-schooling isn't possible for everyone. Your best next bet would be small, local primary schools, often christian in nature.
I went to one of these and it was heaven compared to the large public high school I went to afterwards.
After primary school, I'd also recommend a smaller, christian high school if available.
Sadly local schools are disappearing in favor of massive, centralized public indoctrination centers.

I do not believe college or university should be free or paid for by taxpayer money. When you reach that age you are a grown up and responsible for your own actions, so you pay for your own further education. I mean, common, you're not a little kid that needs to be comforted and nourished anymore. At this age you need to learn to stand on your own feet. It also disincentivizes students from studying worthless degrees.

That being said, I do not approve of cronyism when it comes to the costs of college of university, resulting in abnormal and inflated prices, of which most today is merely there to stimulate a transition to complete public schooling system and further centralization.