Generate high-quality backlinks for your website . Write a good quality content and reach higher authority website to give you a link. Donate your content there, if they agree. Don't settle on getting links from a link farm. If you do this your website will suffer badly.

People tend to get links from Fiverr, etc who give links in a minute. This is unethical. You will have to pay later. Your site ranking will drop.

Develop a schedule and do not spam. Write great content and share and share and share. Share it on high DA media sites. This may make it viral and increase internal traffic .

Keep away from spamming, link stuffing, anchor text stuffing, publishing vague content .

Practice commenting on forums and in blog's commenting section.

Few Personal Tips :

• Maintain link diversity. So many links from one source may be marked as links spamming.
• Repurpose Your Content on content sharing websites.
• Guest posting on quality blogs only.
• Do not buy backlinks and avoid all backlink automation methods.