Besides Neil Patel, there are plenty of other SEO leaders.
Of course, finding them may be difficult if I do not already know about them.
This strategy also works if you have no idea where to start finding people in your industry, but you have an idea of the niche/topic you want to focus.
I use Facebook Audience Insights and the Ads Manager to help me find other potential Facebook interests, pages, etc.
There is no really easy way to show this off since Facebook changes constantly, but this video should give you a general idea of how it works (it’s an older video, but will still help you see how Audience Insights works).