Some of the introverted entrepreneurs I’ve worked with have tried using online tools. You can reach out to folks on social media through dms, general calls, or in groups you’re a part of. Once you have folks agree, you can either have a 1:1 discussion or some people have even tried using survey tools.
Nothing beats a direct conversation. You will learn so much more than a survey can do for you. Some interesting connections and collaborations might emerge too.
Erin.