Great quant score - good to have one strong leg to put your weight on... now it is all in verbal (a harder journey but you should know what it takes to get to perfection after the Q50).
Both eGMAT and The Economist GMAT Tutor would be good courses - the Economist does give you a great money back guarantee of 50-70 points (that's going to ensure you will get over the 700 barrier), so that's nice.
On the other hand, eGMAT will give you the verbal focus you need. I don't think you would go wrong with either. eGMAT may be cheaper since you only need the verbal portion anyway... Pick one that you feel would work best for you (based on your unique preferences, times of the courses/classes and priorities).
I would also do as much reading as you can - fiction or any kind if you can take interest in something and maintain attention. I have written a post about
GMAT Fiction but anything with good English works.
Good Luck!