I've worked on multiple projects and sometimes I struggle to communicate my brand. It's easy to explain what you are if you've been doing that one thing all the time, but what if you have worked in different industries, in different countries, and as a result have expertise in multiple fields? What's your advise?
Start with a website. A website of 5 pages communicating your portfolio, experience, and passion will strike the right chords.
Secondly, move ahead and streamline your social media. Pick 3 social media platforms that are most relevant for you and churn out the right content from them. There are agencies that can help out with this.
Thirdly, get your interviews published on a couple of sites so that they pop on Google when someone Googles your name. If you can become a contribute to few top media sites, that's simply gold.
These three are ideas on top of my head but there's a lot that can be done to position your personal brand strongly on the internet.
Reach out if need help with anything above mentioned. I know people who can do amazing things.