If you’re really interested in such a curriculum, try Hillsdale College’s.
Also Khan Academy for younger students (actually all ages but it fills in the gap that Hillsdale doesn’t have). They are respected by home schoolers and almost as importantly, colleges.
There is a dearth of excellent home school curriculum.
Our daughter and son-in law go to a yearly convention of sorts, listen to speakers, peruse the textbooks, etc.
I don’t know what sways their decisions.
For sure one thing would be the material incorporates Christianity.
Another thing is being mentored by those who have gone before.