Roy Tanck

This plugin will help you:
<ol>
<li>Find plugins and themes that are not active on any blog.</li>
<li>Determine the impact in case a theme/plugin needs to be upgraded, removed or reconfigured.</li>
<li>See if a widget is in use on any blogs, and track down where.</li>
<li>Find users who do not have a role on any site (and are not network administrators).</li>
</ol>
This plugin currently does nothing on single-site WordPress installs.

Network Admin Assistant

Helps you manage a WordPress network by displaying useful statistics.

brasofilo

Multisite Addons Manager
Advanced plugin management system for WordPress Multisite networks, combining granular control with efficient administration.
Features:
<pre><code>- Network-only plugin enforcement
- Per-site plugin visibility controls
- Custom plugin filtering views
- AJAX-powered management interface
- Strict capability verification
</code></pre>
Requirements:
<pre><code>- WordPress Multisite
- PHP 7.4+
- MySQL 5.6+
- Network Admin privileges
</code></pre>
Administration:
<pre><code>- Bulk operations
- Main site override
- Native dashboard integration
- Action logging
</code></pre>
Designed for developers and system administrators needing precise plugin governance in multisite environments.
<h4>Localizations</h4>
<ul>
<li>Português</li>
<li>Español</li>
<li>Français</li>
</ul>

Multisite Addons Manager

Manage network-wide and per-site plugin visibility in Multisite

Network Admin Assistant vs Multisite Addons Manager