I start every project with a mind map. I find this a super helpful exercise to explore all of the different sides of a topic, to figure out what could potentially be interesting, and to have something to go back and look at if I am in need of a fresh perspective.
If you want to watch me make one in action, check out my Skillshare class, Drawing Data to Communicate Ideas. I walk you through the steps that I follow and then demonstrate how I use it throughout the next steps.
Here are a bunch of examples of different mind maps I have created for all sorts of projects over the past couple of years: