A lot of means a large number or quantity. In this context, it refers to having many people who are following you on social media platforms such as Twitter, Facebook, and Instagram.
Sentences with «lot of followers»
Social media is better for passing messages and getting lots of followers. (bookpublishingriches.com)
Looks like you have lots of followers so I appreciate it. (lestylorouge.com)
This isn't a shocker; most of the bloggers that work with brands are bringing in lots of followers on social media or have thousands of daily views on their blog. (thegirlonthet.com)