How to claim knowledge panel?

You cannot make a knowledge panel yourself. Google makes it automatically from the internet.

First, search your name or brand on Google. If you see the panel, look down. There is a button ‘Claim this knowledge panel’. Click on it. Google will ask you to prove you are the real person. You need to sign in with an official account. Like your Twitter, YouTube, or your website’s Search Console.

When it is verified, you can suggest edits. You can change the main photo also. You cannot control everything, but you can fix wrong things.