Hello,
Natural Backlinks are your best sources of backlinks because it provides two advantages
1- It is provided by people who are genuinely interested in your site. Hence, its good for your business and is the best measurement of your popularity.
2- You do not need to worry about any of Google updates related to web spam as site having lots of natural backlinks are loved by Google.
6 ways to get natural backlinks
1 ) Offer free stuff to your audience like free E-book and include links to your website from the ebook.
2 ) Offer images on your site and provide embed code for each image that would contain your site backlink.
3 ) Provide good content on your site as people like to link stuff that is considered authoritative and extremely good.
4 ) Guest blogging is still one of the most preferred ways of link building.
5 ) Create some videos featuring the top authorities of your company and allow users to embed them in their blog or website.
6 ) Always remain in focus and publish press releases. Reporters are looking for good sources of news and if your website or brand is providing newsworthy content that you might get a few backlinks this way.
Hope it might be useful,
Thanks and Regards,
Danny