Though it'll be a while before we find out where Archie will go to school, rumour has it Harry and Meghan are already considering the American Community School (ACS) in Egham, Surrey, close to Windsor, where the family is based at Frogmore Cottage. If they do choose the school, it'll be worlds apart from the schools that Harry and William attended, not just because it's a mixed curriculum, but because it offers the chance to study for international qualifications.
The school accepts pupils aged 4 to 18, so Archie could end up attending for his entire education, though it's also possible that he'll attend until he's 13 before heading to Eton like his dad.