Adding a link that is not a social network
For anything the social list does not cover: a production company, a podcast, a piece of press with no home, a Linktree. You choose the name it appears under, so write the name a reader would click rather than the name of the site. "My audiobook narration reel" beats "SoundCloud". These sit alongside your social links on the site and can be reordered by dragging, so the one you most want opened goes first.