Selim Şimşek

Options:
<ul>
<li>Determine the number of tags to be shown per page</li>
<li>Create a custom style for the link to be shown</li>
<li>Select the area you want to add link (pages, posts)</li>
</ul>

Tag Linker

This plugin adding links to post or page content that match tags in use.

J0SiE

Created to help those people who don’t like to edit code in template files (or are too lazy to do that). 
Just activate the plugin and it will automatically show the_excerpts in your homepage, archives and search results. 
It tries to display your custom excerpt text and if it doesn’t find it it will show an automatically generated excerpt. 
You can also define excerpt length, custom read more link and attach a thumbnail.

Auto Excerpt everywhere

Thanks to author for creating this plugin. 
It's works out of box. And working fine at WordPress Version 4.6.1


Works out of the box on WP Version 4.6.1

The plugin automatically displays excerpts instead of full post contents in your blog. Custom excerpts and generated excerpts supported.

Tag Linker vs Auto Excerpt everywhere