The market is flooded with numerous types of SEO software, offering support for auditing, tracking, and reporting. On the other hand, agencies of all sizes are in search of the right SEO tools. Luckily, there are solutions that appeal to any kind of need. For example, Google Search Volume would be one of the best free keyword research tools. Then, Google Analytics would come as it is the best and most used tool for digital marketers. The world of SEO software for agencies also offers paid solutions as well.