PSAT/NMSQT prep books?

I’m looking at Barron’s, Princeton and and Kaplan for prep books because I’ve finished the practice test given on the college board website, and from Amazon previews alone it seems like Barron’s is more of an overview while Kaplan and Princeton seem a lot more comprehensive and helpful. Are there any more guides/prep books I should be looking at? Which one of these is the best in your experience? What are they actually like? Which should I buy? I especially need help with math because I’ve never studied it in the US curriculum.

I really need help figuring this out!!! I don’t think I should buy all three.