You can customize standard options in your WordPress site header like your logo, site title, tagline, and site icon.

 Note: The options vary depending on your theme.

1. Sign in to WordPress.
2. In the left-hand menu, select Appearance > Customize.
3. Select Site Identity or Header > Site Identity. You will see options to edit the logo, site title, tagline, and site icon.
4. Select Publish to apply the changes.