There are numerous Catholic schools that are not much better than public schools. Find a traditional Catholic school, such as La Salette.
If there is none near you, find an online homeschooling program. They are affordable. Look for a traditional curriculum, such as the Great Books. Thomas Aquinas College explains what that is https://www.thomasaquinas.edu/a-liberating-education/great-books
There is a misunderstanding that in a Catholic school a student will be forced to become Catholic. False. Religion is part of the curriculum, and the education and formation are superior.
“Vouchsafe that I may praise thee, O sacred Virgin. Give me strength against thy enemies.”