mtrdesign

This plugin represents a RSS feed separator, which enables your readers to create RSS subscriptions that only contain posts with specific tags. 
For example, visitor A could create and subscribe to an RSS feed including the tags cooking, recipes, and fine living. Visitor B, could 
instead prefer to read posts related to the tags cocktails, wine, and night life. Each person will have it’s own RSS Feed URL, and each of 
those feeds will only include posts that have one or more of the preselected tags.
If you have a busy blog with lots of entries in it, you should definitely consider installing Selected Tags RSS, in order to enable your visitors 
to subscribe just to the topics they are interested in.
You can configure the location where the the RSS selector would be showing from the plugin settings. If your theme supports widgets you can add and configure a widget from Appearance > Widgets > Selected Tags RSS.
The plugin supports shortcodes. Use <code>[selected-tags-rss-post title="***"]</code> shortcode to show RSS link in posts and <code>[selected-tags-rss-search title="***"]</code> to show the RSS Selector. Title parameter is the optional name of link.
<a href="http://mtr-design.com/" rel="nofollow ugc">Plugin homepage</a>
Features:
<ul>
<li>A different Feed URL for each combination of tags</li>
<li>Simple administration interface</li>
</ul>
Take the time to read the user guide.
<h3>Usage</h3>
<h4>Adding the RSS Selector to the WordPress Sidebar</h4>
<ol>
<li>The plugin provides a widget called “Selected Tags RSS”. You can add this widget to your sidebar or other widget zone via Appearance > Widgets.</li>
</ol>
<h4>Adding the RSS Selector to a WordPress Page</h4>
<ol>
<li>Click on the “Selected Tags RSS” link in the WordPress administration menu to access the plugin settings.</li>
<li>Use the “Selected Pages” widget to Activate the RSS Selector for the desired pages by moving them from the left list to the right one.</li>
<li>Another option is to edit the page and use the shortcode following shortcode (title is optional): <code>[selected-tags-rss-search title="Generate RSS feed with these tags"]</code></li>
</ol>
<h4>Adding the RSS Link to WordPress Posts</h4>
<ol>
<li>The plugin provides a global setting called “Show RSS Link in Posts”, which is found at the “Selected Tags RSS” settings page in the WordPress administration menu. Enabling this setting will result in a special link being added to all Posts </li>
<li>Another option is to use the following shortcode in your Post (title is optional): <code>[selected-tags-rss-post title="Generate RSS feed with these tags"]</code></li>
<li>Yet another option is to edit your Posts template and call the function get_selected_tags_RSS(), as in: <code><?php echo get_selected_tags_RSS() ?></code>. </li>
<li>The automatically generated RSS Link text can be edited vie the plugin settings.</li>
</ol>

Selected Tags RSS

Enable separate RSS feeds covering different combinations of tags. Each feed will only list entries that match at least one of the feed's tags.

Marcus (aka @msykes)

Pixelite

Marcus

Meta Tags Manager is a powerful yet simple, lightweight plugin which allows you to add custom meta tags to your site. Features include:
<ul>
<li>Supports meta tags including the name, property, http-equiv, charset and itemprop attributes.</li>
<li>Choose from predefined types, such as ‘name=”keyword”‘ or create your own by typing it in.</li>
<li>Add meta tags to specific posts, choose what Custom Post Types to support from our settings page.</li>
<li>Add global meta tags that will display on specific CPTs, Taxonomies, your front page or your whole site.</li>
<li>Automatically add Open Graph details to your home page.</li>
<li>Automatically add Schema and Structured Data to your home page.</li>
<li>Add Google Sitelinks and Sitelinks Search markup.</li>
<li>Easily add verification codes for services like Facebook, Google Webmaster Tools, Bing Webmaster Tools, Yandex and more (or… create your own custom meta tags!).</li>
</ul>
Use cases include:
<ul>
<li>Adding Google and Yahoo site verification tags</li>
<li>Adding additional open graph, twitter card or other social media meta info not supported by other SEO/Meta plugins</li>
</ul>
<a href="https://metatagmanager.com/gopro/?utm_source=plugin-readme&utm_medium=plugin&utm_campaign=plugin" rel="nofollow ugc">Go Pro</a> for many newly added features, including:
<ul>
<li>Dynamic placeholders to include data about the page being displayed, such as page title, comment count, thumbnail URLs and more!</li>
<li>Additional contexts to add global meta tags, as well as exclusion rules for finer-grained controls.</li>
<li>Shortcode support within meta descriptions, allowing for more dynamic data insertion with plugins such as ACF</li>
<li>Unique tag detaction of Meta Tag Manager tags with hierarchical precedence, avoid creating duplicate meta tags.</li>
<li>Taxonomy support – create meta tags for individual taxonomy term pages such as a single tag or category.</li>
<li>More to come! Go Pro now and get an early-bird discount of up to 50%!</li>
</ul>

Meta Tag Manager

Easily add and manage custom meta tags to various parts of your site or on individual posts, such as Yahoo and Google verification tags.

Selected Tags RSS vs Meta Tag Manager