Suzanne

For Genesis child themes that output HTML5 only.
This plugin adds an entry field just below the title field on all post, 
page and custom post type edit screens. It allows you to specify a 
subtitle for the content and then outputs the result in an H2 tag just 
under the entry-title where you’d expect to find it.
This plugin is for use with Genesis HTML5 child themes only because it 
uses the hook, genesis_entry_header to position the output after the 
title but before the post-info.

Genesis Subtitles

For Genesis child themes that output HTML5 only.

Fred Dessaint

The featured category is meant to set an introduction category that helps to identify the topic of a post. The plugin adds a metabox in the edit page of a regular post for selecting the featured category. Note that a small coding is required to display the featured category in the right location of your template. You can display the featured category in the desired location of the page with a set of functions that you call from your template. The plugin CMB2 is required for creating metaboxes.
<h4>Functions</h4>
<ul>
<li><code>the_featured_category()</code> takes the current post or page ID and outputs the featured category.</li>
<li><code>get_the_featured_category($post_id)</code> has one optional parameter (post or page ID) and returns the featured category as a string.</li>
<li><code>has_featured_category($post_id)</code> has one optional parameter (post or page ID) and checks whether a featured category exists.</li>
</ul>

Epitome Featured Category

Set an introduction category as a metadata that helps to identify the topic of a post.

Genesis Subtitles vs Epitome Featured Category