Allon Sacks

Sometimes you have a different permalink set up than the breadcrumbs you want. 
For instance: http://yourdomain.com/seo-services 
The “seo-services” page is under the “services” section but you did not set it up as a child of the services page. 
Still, you want the breadcrumbs to indicate the proper parent. 
Example: 
Home > Services > SEO Services 
instead of: 
Home > SEO Services
This plugin lets you do that. 
It has no settings but adds a side meta box to all your posts and pages (All post types) where you can choose the title and url to prepend to the breadcrumbs trail. 
Options are: 
-Append a breadcrumb after the first breadcrumb (Usually “Home”) 
-Prepend a breadcrumb to the last item in the breadcrumbs (the current page). 
A title and URL need to be entered for each pair in order for the breadcrumbs to be affected. You can create 2 new breadcrumbs or just one.
<h3>Future Versions</h3>
<ol>
<li>Change the page url field to use a drop down of current sites pages/posts instead of manually typing in the URL</li>
<li>Add option to use the title of selected page or enter in the title manually to override (Manual is how it currently works)</li>
<li>Please feel free to email me with bugs and/or suggestions.</li>
</ol>

Add a Yoast Breadcrumb

Thanks for this! It's a simple one file plugin, which saved me hours of custom coding. Very appreciated my friend!

Very Simple, works great!

Add/prepend a breacrumb to the current page for Yoast SEO breadcrumbs

JS Morisset

The Most Comprehensive Schema BreadcrumbsList Markup of Any Plugin.
Adds Schema BreadcrumbList markup for posts, pages, custom post types, categories, tags, custom taxonomies, search results, and date archive pages.
Select between using ancestors (aka parents), the primary category, or all categories for posts, pages, and custom post types.
No Templates to Modify:
Simply activate or deactivate the plugin to enable / disable the addition of Schema BreadcrumbList markup.

<h3>WPSSO Core Required</h3>
WPSSO Schema Breadcrumbs Markup is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO Schema Breadcrumbs Markup

Schema BreadcrumbList markup in JSON-LD format for Google Rich Results.

Add a Yoast Breadcrumb vs WPSSO Schema Breadcrumbs Markup