Choosing the right prep resource really comes down to finding the one that fits the way
you learn, so it's worth spending a little time up front figuring out what works for you before you commit to anything.
If you want a clear picture of the different types of resources out there and how they compare, this guide walks through them:
https://blog.targettestprep.com/gmat-fo ... resources/. And once you're ready to start narrowing down to a specific course, this one covers exactly what to look for so you can tell the strong options apart from the rest:
https://blog.targettestprep.com/best-gm ... es-online/.
I'd also encourage you to read through the GMAT course reviews right here on GMAT Club, since hearing directly from students who've been through the process tells you a lot. Most courses offer a free or low-cost trial too, so take advantage of those and actually test drive a few. You'll get a feel pretty quickly for which one clicks for you.
If questions come up while you're comparing your options, just reach out. I'm always happy to help.