there are different techniques like on page seo technique is playing great role in ranking ,

Install yoast seo plugin. It will help you to keep the track of on page seo.
Check keyword planner or keyword tool before using any primary keyword. If you are a newbie then try target the keywords which are in low competitions.

Use a keyword in tag and meta description during on page SEO and off page SEO.It helps to crawl your keyword and increase ranking.

increase your quality back links.

You need to perform SEO techniques. Some off page SEO techniques are blog posting, business listing, guest post, online forum involvement, and more.

organic seo method that is best option.

Content and Quality Backlinks are the important One.

Making quality links can improve your serp in Google.

I think
Article submission
Blog submission
Classified submission
Bookmarking submission
Yahoo answering
Directory submission
Local business Listing
Images sharing
Video sharing

If you want to Improve Keyword ranking of website. Do SEO off page activity are

Content Posting
Forum Posting
Yahoo answering
Bookmarking submission
Directory submission
Images Sharing
Video submission
PPT submission
Question Answering

You have to start with long tail keywords. Build high quality backlinks (hope you know about that), use generic keywords (50%) and build your own web 2.0 network (daily updates).

1.Select group keyword + primary keyword
2.Optimum onpage
3.Backlink related websites

Adhere to these recommendations, and enjoy your website increase the positions to the top of search-engine outcomes.

Publish Relevant Content. Quality content is the number one driver of your search engine rankings and there is no substitute for great content. ...
Update Your Content Regularly. ...
Metadata. ...
Have a link-worthy site. ...
Use alt tags.

Follow these methods to increase keyword ranking

1.Forum posting
2.Blog posting
3.Guest posting
4.Article submission

increase your content relevence ,