I'm new to SEO, and I have a few questions. I understand that the best backlinks are the ones you earn naturally. However, for a new site that has none of its pages in the top 10 of Google results and is almost receiving no traffic at all, it's unlikely to get any natural backlinks. It doesn't matter how good and useful the content is if no one is visiting the site. What should be their link-building strategy, and what type of links should they aim for?