At first, you need to do On-Page SEO on your website properly.
Here are some On-page SEO tips that will help you to rank your site quickly –
– Improve the user experience of your website
– Improve your site’s speed
– Optimize meta tags
– Use less competitive keywords and long-tail keywords
– Write quality content and proper use of keywords.
– Use H1, H2 heading tags.
– Optimize image alt text
– Add internal links and external links
– Use social links
– Optimize for mobile indexing

To improve website ranking you need to do some quality backlinks in high DA PA sites. It will be one of the most powerful assets for your website.
You also need to do Off-page SEO and also need to make high-quality unique content for your website.
The Off-page SEO –
– Classified ads
– Image Sharing
– Social Bookmarking
– Directory Submission
– Q and A submission
– Forum Posting
– PDF Submission
– PPT Submission
– Web 2.0
– Blog Comment
– Video Creation and Submission
– Infographic Submission
– Article Submission
– Guest Posting
– Press Release etc.