Need extra ACT questions by type. Anyone know which book?

Test Preparation ACT Preparation
1

Hi, I already have the official red and the black ACT prep books, as well as ACT 36. What I would really love, is a book that takes specific questions and separates them by type. In other words, if I’m struggling on a specific question, I’d like to find 5 other questions that are similar enough to practice on until I get it right!

Does anyone know if the 5lb book or the ACT 1460 are organized this way, or are they both just in random sequence?

2

Varsity tutors allows you to study by concept and may meet your needs.

https://www.varsitytutors.com/act-help

3

Would it be okay to rely only on Varsity Tutors? They have like a million questions on every subject. I was wondering if I didn’t really have the financial means to pay for extra resources if this would be a good place to start.