WebHostingHero

<p>This plugin displays a drop down menu in the admin dashboard that allows you to filter the page list by their parent page. No configuration is necessary.</p>


Parent Page Filter

It's a simple plugin and does the job, but only if WP_DEBUG is disabled.
The two main issues I have with this plugin are:

It assumes that $_GET['post_type'] exists and/or is set, when it mightn't, which throws PHP warnings and sometimes actually halts page load, here and here.

Not ready for translation

(I am happy to patch by the way, a GH repo would be nice)



Works ok-ish, needs a few tweaks

This plugin allows you to filter pages by parent in the admin dashboard.

EngageWeb

nickarkell

<p>This plugin is only neccessary when using Classic Editor because Gutenberg Editor has dynamic parent selection built-in.</p>
<p>Dynaparent – Dynamic Parent. This is ideal for websites that feature a huge number of pages and subpages. When adding a new page within WordPress, this plugin makes it much easier to choose a parent page.</p>
<p>Dynparent replaces the standard dropdown list selection method for parent pages with a dynamic search box. As you begin to type the name of the parent page you want, a list appears of the parent pages matching that criteria. The list will update with each new character typed.</p>
<p>This is designed for sites with a large selection of parent pages.</p>
<h3>How do I select the parent page when I can see it in the list?</h3>
<p>Simply click the parent page, it will become bold and will fill in the field with that value, then make sure you publish/update your post.</p>
<h3>Do I have to start with the first letters of the parent page’s name?</h3>
<p>No, the plugin will search any part of the parent page’s name. For instance, to find ‘Steven’, you could start to type ‘even’ and it will appear in the list of potential matches.</p>
<h3>What if I have many pages and subpages with the same name?</h3>
<p>The plugin was designed for this very reason, and is ideal for websites that feature multiple pages and subpages with similar or identical names. The parent pages are displayed in the list with their full path, so you can easily select the correct page from the displayed list.</p>


Dynaparent – Dynamic Parent Filter

Dynaparent (Dynamic Parent) makes it much easier to choose a parent page on websites that feature a huge number of pages and subpages.

Parent Page Filter vs Dynaparent – Dynamic Parent Filter