Build one with these 6 simple steps:
Kick off your brand style guide with a great brand story.
Use logo guidelines to create a recognizable brand signature.
Include your brand’s core color palette.
Dictate your typography hierarchy.
Define your brand voice.
Specify the imagery and iconography that makes up your visual style.
Source: https://blog.roboket.com/brand-style-guide-example-how-to-create-your-own/
