You can setup your social media profiles. Go to Theme Setting > Social Profiles. Enter each social profile information and leave the one you don’t want to display its social icon blank.
Social Icons In Top Bar
You can display social icons in top bar area. Open Appearance > Customize > Navigation > Top Bar and check “Display Top Bar”.
Social Icons In Copyright Bar
You can display social icons in copyright area. Open Appearance > Customize > Footer > Copyright > Copyright Right Area Content and select Social Icon then save changes.