The On-Page and Post SEO WordPress Plugin gives you the DIY SEO Tools that will enable you to write better content and analyse it for SEO factors.
WordPress RB keyword research plug in grabs auto-complete keywords from Google to help you build your keyword list and optimize your website.
WordPress keyword research tool. This plugin will help you find potential keywords to optimize for your website.
Drive targeted search visitors to your website by focusing on the most promising organic keywords in your existing traffic.