fishdan Jsonmaker lets administrators curate a nested tree of links directly on the front end. Drop the <code>[jsonmaker]</code> shortcode onto a page, expand nodes to add children, rename or remove items inline, and fetch any branch at <code>/json/<slug>.json</code>.
Highlights
<ul>
<li>Inline “Add”, “Edit”, and “Delete” controls for administrators (capability <code>jsonmaker_manage</code>).</li>
<li>Clean JSON endpoint for each node (<code>/json/<slug>.json</code>).</li>
<li>Store either URLs or plain text values; an empty value keeps a node as a container.</li>
<li>All data persists in a single WordPress option—no custom tables.</li>
</ul>

fishdan Jsonmaker

Manage hierarchical link collections via a shortcode, edit them inline, and expose any node as JSON.

Hesham Zebida

Schema.Press

Like Schema Default Image extension? Consider leaving a <a href="https://wordpress.org/support/plugin/schema-default-image/reviews/" rel="ugc">5 star review</a>.
Schema Default Image is an extension for the Schema plugin, it extend Schema functionality by adding ability to set a default image, which will be used in schema.org markup output if no Featured image is attached to the post.
Note: This extension requires <a href="https://wordpress.org/plugins/schema/" rel="ugc">Schema plugin</a> to be installed and activated on your site.
Google requires every <a href="https://schema.press/docs-premium/add-schema-article/" rel="nofollow ugc">Article</a> and <a href="https://schema.press/docs-premium/add-schema-org-markup-blogposting/" rel="nofollow ugc">BlogPost</a> to have an image property within its schema.org markup, otherwise you will get an error in Rich Results testing tool and Search Console.
Also, Google recommends uploading a high quality image, it shouldn’t be smaller than the <a href="https://schema.press/docs-premium/image-size-smaller-than-recommended-size/" rel="nofollow ugc">recommended image size</a>.
Check out the <a href="https://schema.press/downloads/schema/" rel="nofollow ugc">Schema Free Plugin</a> page for more info and <a href="https://schema.press/docs/default-image/" rel="nofollow ugc">documentation</a>.
Looking for more features? Check out the Premium <a href="https://schema.press/downloads/schema-premium/" rel="nofollow ugc">Schema Plugin</a>.

Schema Default Image

Add ability to set a default Featured image for schema.org markup, an extension for the Schema plugin.

fishdan Jsonmaker vs Schema Default Image