Google Trends lets you examine where (geographically) searches for specific keywords come from, how they change over time, related keywords, and does comparative keyword analysis too.
Facebook Audience Insight are available inside of the business manager in Facebook and let you explore all of the audiences you can market to on Facebook— that is, the entire world of Facebook users.
If you have a Facebook Page, it comes with a powerful toolkit to show you analytics about your views, engagements, videos, and a lot more.
Mention is the “be in the know” tool for marketers to understand what social media influencers are saying about keywords or topics. Mention also has comparative analysis and sophisticated change-over-time graphs for trend analysis.
GSC shows you how many clicks your site gets from Google searches, pages with errors, performance over time, and more. Use GSC to remove content from Google’s cache and search results too.
Sometimes Google searches are mundane, but sometimes they reveal dark secrets and things people “only ever dare share with Google.” Answer The Public gives you insight into the psychology of internet searches in an intuitive sophisticated UX.
SimiliarWeb is another tool for site analysis. Like Alexa, it shows you rankings of web traffic. SimilarWeb also has powerful tools to let you compare web traffic between websites.
BuzzSumo is a great tool for trend analysis (what keywords are being talked about) across social media Facebook Twitter Pinterest Reddit and the web.
Social Blade is used to analyze specific social media accounts, their followers, and see how people gaining and lose followers.