What are the best research topics for a Masters degree in Digital Marketing?

I’m currently doing my Masters Degree in Digital Marketing and looking for an effective and meaningful topic to do my research on. I would like to do my research on a challenging topic that would provide answers to help others/businesses/corporations/organisations move forward. Therefore, I would like your assistance to suggest topics that you think are currently challenging in Digital Marketing, and if research properly would help others to chart and navigate unknown lands laying ahead.

View Reddit by hfatahView Source