ACT PREP 2018

I’m trying to find good books to study from for the ACT. I have the red book, I also have Kaplans ACT prep course book, I have Cambridge ACT book & an ACT book based on science & mathematics. I want another book but I don’t know which book to get. I was leaning towards Kaplan ACT prep Plus 2018 or Cracking the ACT. Any suggestions?

I’ve heard good reviews for the Barron’s 36 book.

erica meltzer for sure