What should I take the SAT with?

So I'm planning on taking AP Calc AB next year and the year after that I'm taking AP CSA. Now I also want to take the SAT, but I'm not quite sure which year to take it in.

Also I'm not in the US. On the other side of the globe in fact. I say this because I feel like the posts on here are genuinely just shocking. Or maybe the US just has far better support than we do where I am(basically non existent unless you want to pay a hefty tuition fee for an expensive school)