Kodetop

Create a list with all the posts, grouped by months and years like a tree of contents. This plugin is based on <a href="http://www.geekwithlaptop.com/projects/clean-archives/" title="SRG Clean Archives" rel="nofollow ugc">SRG Clean Archives</a> but modified to be faster and not using additional libraries.
Features
<ul>
<li>Easy install</li>
<li>Clean list of your posts</li>
<li>No additional configuration is required</li>
<li>Easy to use</li>
</ul>
How to Use
<ul>
<li>Create a page called <code>archives</code>.</li>
<li>
On page created to insert the text:
<!–wp_archives–>
</li>
</ul>

WP-Archives

Display your archives with year/month list.

Robert Noakes

Adds functionality to collapse and expand nav menus within the WordPress admin. All parent nav menu items are collapsed by default, but you have the option to store the collapsed/expanded state for the menus on a user-by-user basis.
<a href="https://noakesplugins.com/kb/nav-menu-collapse/" rel="nofollow ugc">View the Knowledge Base »</a>

Nav Menu Collapse

Simple, to the point, this should absolutely be in core.

Adds functionality to collapse and expand nav menus within the WordPress admin.

WP-Archives vs Nav Menu Collapse