harpercl

This plugin will add a widget that displays thumbnails of the most recently posted images from all the blogs in a network. It’s highly optimized to be scalable for large networks, so it should need only about 100 database queries even for a network of thousands of sites. And to keep any performance drain as minimal as possible, the plugin utilizes caching with an adjustable update interval.
<ul>
<li>Note that images are taken only from blogs and posts which don’t have privacy options enabled (compatible with <a href="https://wordpress.org/extend/plugins/more-privacy-options/" rel="ugc">More Privacy Options</a>) and the image must be attached to a post. So essentially, only public images are shown.</li>
</ul>
The widget formatting is completely customizable via a template and/or CSS (if available). The template uses patterns that will plug in values for the following:
<ul>
<li>Image Title</li>
<li>Image Caption</li>
<li>Image Description</li>
<li>Image Thumbnail URL</li>
<li>Full Image URL</li>
<li>Image Publish Date</li>
<li>Parent Post Title</li>
<li>Parent Post URL</li>
<li>Blog URL</li>
</ul>

Sitewide Recent Images

A widget for multisite blogs to feature recent images from all the blogs on their network

kodeala

Reorder Multisite Sites Dropdown gives WordPress Multisite administrators a powerful tool to organize the My Sites dropdown in the WordPress Admin Bar. With this plugin, you can customize how sites appear in the admin bar so they are easier to find and better organized for your workflow. It is especially useful for WordPress Multisite networks with many sites where the default alphabetical ordering becomes difficult to manage, enhancing the existing WordPress multisite admin bar experience without modifying WordPress core functionality.
With this plugin, you can:
<ul>
<li>Reorder sites in the My Sites dropdown using drag-and-drop.</li>
<li>Manually set ordering using number input fields for quick repositioning.</li>
<li>Create groups to organize related sites together.</li>
<li>Add divider lines to visually separate sections.</li>
<li>Nest sites inside groups for better structure.</li>
</ul>
The ordering interface is available in the Network Admin under Settings > Reorder My Sites

Reorder Multisite Sites Dropdown

Adds advanced ordering controls to the WordPress Multisite My Sites admin bar dropdown, allowing administrators to organize sites with drag-and-drop,  …

Sitewide Recent Images vs Reorder Multisite Sites Dropdown