iniyan

Logesh Kumar Rajkumar

This plugin adds a previous and next post links on a single post in a conventional way. This plugin creates a new Genesis settings page (Genesis Post Navigation) that allows you to Customize the post navigation colors and to navigate posts within category.
Requires the Genesis framework.
Animations: On mouseover the previous and next links can travel from north pole to south pole 🙂 
But, I put just 20px.
Check <a href="http://logeshkumar.com/wordpress-performance/" rel="nofollow ugc">plugin demo here</a>
We really thank Andrew Norcross. We get color selection options from Andrew Norcross’s plugin Genesis design pallete.

Genesis Post Navigation

This plugin adds post navigation and an additional option to navigate posts within category.

Rommel Plofino

RP Post Nav plug-in gives you facility to:
<ol>
<li>Navigate within Post Category/Taxonomy or Date Wise Navigation.</li>
<li>Option to set Post Navigation Bar at Bottom, Top or both Top & Bottom.</li>
<li>Apply CSS Style to Previous and Next Post Display.</li>
<li>Customizing Label Text instead of default Next/Previous Labels.</li>
<li>Customizing Image for Next/Previous Post Background.</li>
<li>Select Custom Post Types and Taxonomies for related post.</li>
<li>Manually Place RP Post Nav Shortcode.</li>
</ol>
For Help visit: https://wordpress.org/support/plugin/rp-post-nav

RP Post Nav

Show Next and Previous Post Links, Thumbnails or Excerpt at Posts, Pages, Media or Custom Post Types.

Genesis Post Navigation vs RP Post Nav