Piyush Dhanotiya

Control the block editor and classic editor per post type with a simple settings page.
With this plugin you can:
<ul>
<li>Disable the block editor for selected post types.</li>
<li>Disable the classic editor for selected post types.</li>
<li>Lock the chosen editor mode when using the Classic Editor plugin.</li>
<li>Prevent conflicting settings for the same post type.</li>
<li>Reset all settings from the admin page.</li>
</ul>
This plugin is useful for agencies, developers, and site owners who need a cleaner editing experience across custom post types.
<h3>Features</h3>
<ul>
<li>Simple settings page under Settings > Editor Control.</li>
<li>Works with public and custom post types that are visible in the admin.</li>
<li>Compatible with the Classic Editor plugin when installed.</li>
<li>Prevents the same post type from being forced into both modes.</li>
<li>Safe defaults with input sanitization and output escaping.</li>
</ul>

Mapoza Editor Control

Control the block editor and classic editor per post type with a simple settings page.

Pieter Bos

gschoppe

<blockquote>
GDPR-compliant: does not collect any user data
</blockquote>
The free “Classic Editor +” plugin is targeted at everyone who does not want to use the WP Block Editor (Gutenberg), introduced in WordPress 5.0. Install it now on sites and the UX remains the same as you are used to without redundant styling being added to the frontend of your site!
What’s New: 
Removes WP Patterns
This plugin simply disables the WP Block Editor, removes any and all styling from both front- and backend and disables the block editor for widgets too.
And if WooCommerce and/or WPML are installed on the site, “Classic Editor +” removes the block styles of those plugins too.
There are no Settings, it simply does what it says on the label.
Therefore I highly recommend installing this “Classic Editor +” plugin.
I support this plugin exclusively through <a href="https://github.com/senlin/classic-editor-addon/issues" rel="nofollow ugc">Github</a>. Therefore, if you have any questions, need help and/or want to make a feature request, please open an issue here. You can also browse through open and closed issues to find what you are looking for and perhaps even help others.
Thanks for your understanding and cooperation.
If you like the “Classic Editor +” plugin, please consider leaving a <a href="https://wordpress.org/support/view/plugin-reviews/classic-editor-addon?rate=5#postform" rel="ugc">review</a>. Thanks!
“Classic Editor +” by <a href="https://so-wp.com/plugin/classic-editor-addon" rel="nofollow ugc">Pieter Bos</a> and <a href="https://gschoppe.com" rel="nofollow ugc">Greg Schoppe</a>.

Classic Editor +

The "Classic Editor +" plugin disables the block editor, removes enqueued scripts/styles and brings back classic Widgets.

Mapoza Editor Control vs Classic Editor +