Are there after-school programs that have "Singapore math" or similar in the US? I've seen the Russian School of Mathematics and I wonder if there are other "f

Are there after-school programs that have "Singapore math" or similar in the US? I've seen the Russian School of Mathematics and I wonder if there are other "foreign" style of math education. If so, I would consider enrolling my future children. When I grew up, I was enrolled in a bilingual school in middle-school. So I took math in Spanish (following the Mexican curriculum), and in English (following the US curriculum). I thought that was fantastic not because one or other was better (I can't recall) but because it gave different approaches to the same topics.