Just Related is a simple plugin to display related posts below your post. Related posts will appear as a list of titles.
You have no need to take any extra stress to handle this tiny plugin. Just install and forget.
In this primary issue of Just Related you will get 5 related posts just below your posts.
<h4>Feature:</h4>
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<li>Easy to Maintain</li>
<li>Light for WordPress</li>
<li>Auto Configuration</li>
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Just Related

Just Related is a simple plugin to display related posts below your post. Related posts will appear as a list of titles.

chuoitaotau

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Description: 
A Related Posts plugin that is easy-to-use & highly customizable. Display list of related posts by tags & categories, let you decide number of related posts and select displaying content. Come together with two ready-built themes for your use!
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Features include:
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<li>Display related posts under posts with similar tags and categories</li>
<li>Custom number of related posts to display</li>
<li>Custom title, text size, and text color</li>
<li>Select content to display for each related post: post title, post thumbnail, author, create date, excerpts, and button Read More</li>
<li>Two ready-built themes for your use: Related posts with text-only and with thumbnail.</li>
<li>Related post slider: customizable number of posts visible at once</li>
<li>User can custom style for related posts</li>
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<li>Upcoming features:</li>
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<li>Responsive design</li>
<li>Related custom post types</li>
<li>Support widget</li>
<li>Custom post excerpts length</li>
<li>And more…</li>
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Quick related post

thumbnails are not displayed

Easy display Related Post under post by tags and category

Just Related vs Quick related post