Following is a process that can be followed for personal branding:
1. Define your target audience: It is very important to know about the target audience that you are trying to reach. Only when you have defined the taget aduience will you be able to analyze and find out about their preferences. Knowing about the target audiences preferences will help build your personal brand.
2. Audit and build your online and pffline presence: Communicate your brand message to the target audience through offline and online mediums.
3. Plan strategy to reach target market: Decide how you will reach your target audience. It could be through social media, forums, blog posts, etc.
This https://www.feedough.com/your-complete-guide-to-personal-branding/ article has indept explanation about the process.