Article Submission site is one of the main part of Off Page SEO. You can create unique content and publish them. These submission websites is the best way to get your content to target audience. If you publish the best content then only get the good results. Write good keyword and put hyperlink to your keywords, it will helps to improve your ranking.
Free Articles Submission Websites
https://www.ehow.com/
http://hubpages.com/
https://ezinearticles.com/
https://www.articlesbase.com/
http://www.amazines.com
http://www.easy-articles.com/
http://www.openarticles.com/
http://articlecatalog.com/
https://www.articlecube.com/
https://www.cgidir.com/
http://www.blogsome.com/
http://www.webhostingtalk.com/
http://magportal.com/