Ranjan Kumar

Auto Internal Linking Optimizer helps you add SEO-friendly internal links automatically. Create keyword → URL pairs and the plugin inserts links (first occurrence per keyword) into post content while respecting a global per-post link limit.
<h3>License</h3>
This plugin is licensed under the GPL v2 or later.

Auto Internal Linking Optimizer

Automatically adds internal links to your posts and pages based on defined keywords to boost SEO.

chrisguitarguy

agencypmg

SEO Auto Linker is an update to the much loved <a href="https://wordpress.org/extend/plugins/seo-automatic-links/" title="SEO Smart Links" rel="ugc">SEO Smart Links</a> plugin.
The plugin automatically links words and phrases in your post, page or custom post type content.
The difference is that you no longer have to try and guess what links will appear. Specify keywords in a comma separated list, type in the URL to which those keywords will link, specify how many links to the specified URL per post, and then specify the post type. SEO Auto Linker does the rest.
Bugs? Problems? <a href="http://pmg.co/contact" rel="nofollow ugc">Get in touch</a>.

SEO Auto Linker

I just recommended this to Paul Boag of the Boagworld podcast. It's that good that after 4 years since last update it's still working with a WordPress 4.8 I tested it on!

Very robust bit of kit

SEO Auto Linker allows you to automagically add links into your content. Great for internal linking!

Auto Internal Linking Optimizer vs SEO Auto Linker