How can I make my backlinks stronger?

Hi Friends,
7 strategies that are working GREAT in 2019.

1. Publish "Skyscraper" Content
2. Become a Source For Reporters and Bloggers (HARO)
3. Build Links From Outdated Resources
4. Stop Guessing. Use Content Formats PROVEN To Generate Links and Social Shares
5. Want High Quality Backlinks? Publish Ultimate Guides
6. Use Branded Strategies and Techniques
7. Authority Resource Pages