General GMAT Questions and Strategies | Re: GMAT Tutor Guatemala

A lot of prep companies have video based classes and assist with live classes as well.
e-GMAT is one such company. They offer a free trial as well.
From my own experience, I can tell you that they are quite good for Verbal.
For Quant, you could choose Math revolution(if i am not wrong they offer some kind of money back guarantee, if you do not achieve your goal score)

Have a look at this post, may help clear somethings out for you.
https://gmatclub.com/forum/best-gmat-co
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