Hello,

The books that would best help you in cracking GRE with great score are:

1.Manhattan's Prep 5lb Series.

2. Ofiicial guide to GRE by ETS

If you practice these 2 books you can expect a decent score. In addition to this you can take up online courses provided by Magoosh which would provide you realtime benfits. 

Get yourself devoted to learn atleast 10 words daily to improve your vocabulary and you can use Mnemonic dictionary to avoid memorising words.

I hope this helps! 

Thanks.

• Gre prep by magoos
• Gre prep plus 2018 by kalpan test prep
• Cracking the gre premium edition by princeton review
• The official guide to the gre by N/A educational testing service
• Barrons gre verbal workbook by Philip geer