Aaron D. Campbell

<p>This plugin allows you to manually enter links that are related to a post.  They<br />
can be on any site and you can enter just the URL or an entire link (specifying<br />
the title attribute, onclicks, etc).  There are helper functions to display them<br />
in your theme or you can simply tell the plugin to automatically add them to<br />
posts or even just single posts.  The list is output as an unordered list (ul)<br />
with an optional title, and everything has CSS classes to make styling easy.<br />
Requires PHP5.</p>


Manual Related Links

A related links plugin that allows you to manually specify links, even if they're on another site. Requires PHP5.

WPClever

<p><strong>WPC Custom Related Products for WooCommerce</strong> is a super easy plugin for creating a custom list of recommended products on single product pages. It’s a simple but powerful tool for boosting cross-selling on your site.</p>
<p>By refining the related product list, store owners are entitled to promote products from the same collection or other product lines better, while making it easier for customers to find what they need easily or might be interested in. This, thus, offers a better chance for increasing order value and revenue.</p>
<h4>Features</h4>
<ul>
<li>Enter some keywords to search & add products</li>
<li>Set default products from Up-Sells, Cross-Sells or both</li>
<li>Drag & drop to rearrange the order of items</li>
<li>Search configurations: search limit, search by SKU, exact or sentence search</li>
<li>Compatible with most common WordPress themes and plugins</li>
</ul>
<h4>Not what you needed?</h4>
<p>Please try other plugins from us:</p>
<ul>
<li><a href="https://wordpress.org/plugins/woo-product-bundle/" title="WPC Product Bundles" rel="ugc">WPC Product Bundles</a></li>
<li><a href="https://wordpress.org/plugins/wpc-composite-products/" title="WPC Composite Products" rel="ugc">WPC Composite Products</a></li>
<li><a href="https://wordpress.org/plugins/wpc-grouped-product/" title="WPC Grouped Product" rel="ugc">WPC Grouped Product</a></li>
<li><a href="https://wordpress.org/plugins/woo-bought-together/" title="WPC Frequently Bought Together" rel="ugc">WPC Frequently Bought Together</a></li>
<li><a href="https://wordpress.org/plugins/wpc-force-sells/" title="WPC Force Sells" rel="ugc">WPC Force Sells</a></li>
</ul>


WPC Custom Related Products for WooCommerce

WPC Custom Related Products allows you to choose custom related products for each product.

Manual Related Links vs WPC Custom Related Products for WooCommerce