Consider signing up with a ultimate SAT or ACT course (or both) with The Princeton Review and get a 175 discount! The course includes 25 hours of live instruction, 3 hours of one-on-one instruction, and 4 practice tests.
Sign up at
https://www.princetonreview.com/college/sat-test-prep?ceid=hp-bar and use the code "TJHSST" to receive your discount for either an online or in-person prep class (some online classes start as early as April 22 so sign up soon!).
This is an excellent prep course, and they have a score improvement guarantee-improve your score or get your money back. The code works for both SAT AND ACT.
Your child does not have to be at TJ to use the code, so the 175 discount is all yours :)