This is what can be found at Barnes and Noble
(Many of these companies also have more prep available on their websites)

Barron’s
Pass Key to the GRE 9^th Edition
GRE Vocabulary Flash Cards
GRE 3^rd Edition “500 flash cards”
GRE 22^nd Edition “Most Up-to-date Review and Practice Tests Currently Available”
6 GRE Practice Tests
Essential Words for the GRE

Kaplan
GRE Prep 2018
GRE Flashcards + App Fourth Edition
GRE Verbal Workbook 9^th Edition
GRE Prep Plus 2018

Manhattan Prep
GRE Flash Cards 2^nd Edition
5 lb. Book of GRE Practice Problems

The Princeton Review
Essential GRE Vocabulary 2^nd Edition
GRE Power Vocab
Cracking the GRE Premium 2018 Edition
1,007 GRE Practice Questions 4^th Edition
Crash Course for the GRE 6^th Edition
Verbal Workout for the GRE 6^th Edition

ETS
The Official Guide to the GRE General Test
Official GRE Super Power Pack
Official GRE Verbal Reasoning Practice Questions

McGraw Hill
GRE 2018
6 GRE Practice Tests