lmbbox

Allows child themes to use their template files before the parent theme’s template files.

LMB^Box Child Theme Hierarchy

Allows child themes to use their template files before the parent theme's template files.

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.

LMB^Box Child Theme Hierarchy vs WPSSO Schema Breadcrumbs Markup