lynettechandler

This plugin lets you laser focus your banners, advertisements, promos and affiliate promos in relevant posts that you choose. When you put out a quality review or are talking about a specific product, people are more open and ready to checking out the product when you invite them to. Take it a step further. Make your call to action bolder or place a banner ad directly in that post instead of showing other ads that may not be relevant.
Features
<ul>
<li>Use HTML or Javascript ads</li>
<li>Includes the option to fall back to a default advertisement if no ads are found for that post (optional)</li>
<li>Automatically place ads before, after content or using widgets</li>
<li>For finer control, you can choose to use a shortcode to include the ad directly into your post</li>
</ul>

Single Post Ads

This plugin lets you put banners, advertisements, promos and affiliate promos only in relevant posts that you choose.

tiago fabre

This plugin will enable a check box on page editor, and every pages check will be showed on front page.
A few notes about the sections above:
<ul>
<li>“Contributors” Tiago Fabre</li>
<li>“Tags” Single-page, single, custom, page, one page, website</li>
<li>“Requires at least” 3.8</li>
<li>“Tested up to” 4.3</li>
</ul>
<h3>A brief Markdown Example</h3>
Ordered list:
<ol>
<li>Make a single page website</li>
<li>Easy to make a landing page</li>
</ol>

WP single page

This plugin enable you to make a single page website, easy and organized

Single Post Ads vs WP single page