Before we begin designing and developing any product or feature, we must first analyze the market and try to discover our target audience(s).

You can narrow down your target audience using all of the information you acquired during the design thinking and MVP phases. It is not required to have a single target audience.

People use your product for a variety of reasons, and it is your responsibility to categorize these customers into distinct buckets so that you can customize your marketing and UX to their requirements.

You can boil it down to three questions.

1. Who would benefit from your product in order to alleviate their pain points/problems?
2. What do they need/want in order to solve their problems?
3. How you can give that solution to them.

These are some more articles which you can refer to really nail down your TA.

What Is A Target Audience? An Easy Guide To Find Your Perfect Audience

UX Part 2: Define Users, Find them & Solve Their Problems