How to acquire quality links
1) Create quality Content
Creating content that is relevant, credible and user-focused is the only way to creating quality content. Your content should be focused on your user's satisfaction. Your content could be educative, entertaining or informative.
Even if it is a review, your content should be based on how relevant the product is to the user. Where the product is recommended, your content should show how it can be acquired.
2) Engage Visuals in your content
The days are gone when people enjoy reading long-form of text. They rather want to engage with visuals in any form as they read on. Writers now creatively use images to break long content into short, readable forms.
3) Relationships
As much as you can, use relationships. Ensure that the relationship has a mutual benefit when it comes to content production. Not just linking your content for link sake, but ensure that your content adds value to their readers.
So doing, the link will be valuable when perceived by both human and search engines.
4) Check Old Links
Apart from search out new link building opportunities, you can leverage on old links. With link checking tools, you can ascertain sources of links to your website. Tools like Ahrefs or Semruch will help you check links sources. Where the links are not alive and no longer, you can easily reach out to the website admin or editor.
You should watch out for pages on your website that are not available any longer. The links will have no value. You can rework and redirect such pages.
Conclusion
There are a lot of link manipulation tactics that can be harmful to your website. Avoid buying links from Fiverr and other sources. Rather concentrate on building relevant and genuine links.