Negative search results don't have to define your brand. You should start with...

https://extra-wiki.win/index.php/What_Should_I_Put_on_My_About_Page_to_Help_Google_Understand_My_Brand%3F

Negative search results don't have to define your brand. You should start with a quiet audit to identify exactly what damages your reputation. Sometimes you can request direct removal if content violates policies