To find the best backlink websites, focus on high-authority, niche-relevant sources like Medium, Quora, LinkedIn, and industry blogs that accept guest posts. Use tools like Ahrefs or SEMrush to analyze where your competitors get their links and target the same sources. Prioritize dofollow links from sites with high Domain Authority (DA 50+) over quantity — one strong link beats hundreds of spammy ones. Stick to strategies like guest posting, broken link building, and niche edits to build a natural, penalty-safe backlink profile that drives real SEO growth.