How to earn quality backlinks or natural backlinks?

Hi, can anyone suggest me tips or tricks to earn quality backlinks or natural backlinks?

Now, let's turn to eight ways you can build high-quality backlinks when no one knows your name.

Leverage public relations. ...
Write competitive content. ...
Do an original study. ...
Create an infographic. ...
Write testimonials for other websites. ...
Link externally and then reach out. ...
Comment on other relevant blog posts. ...
Align social signals.

You can generate quality backlinks with the help of various off page techniques like:

Guest posting
Article submission
Press release submission
Social bookmarks
Classified ads
Infographics submission

Guest posts on related websites.
Build links with infographics.
Broken links method.
Blog commenting.
Skyscraper technique.
Niche forums.
Email outreach to influentials.