Should I Take A Prep Course?

I am taking the SAT in October. I previously took it in march and got a 1700. I am trying to increase my score to at least a 2000. I know my best bet is probably just to use the blue book, but I was wondering what prep courses might be best for me. Any suggestions? Preferably an online course.

take prepscholar, it’s online just google it.

^I second that!

If I had money, I would do prepscholar too. Otherwise, self study.