I am currently a year 12 student who takes NCEA, which tests should I consider taking on top of the ACT/SAT? (e.g. AP classes, SAT subject tests or scholarships)
SAT subject tests and Scholarships. Maybe an Olympiad exam if you’re good at Chem or Bio. Some ICAS and Australian tests if you’re looking for academic awards to put on your common app.
Did you take APs?