WordPress My Sites Plugins

Sort My Sites lets you change the ordering of the My Sites menu on the dashboard and in the admin bar.

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

When using WordPress multisite, the "My Sites" menu item will be added to the admin bar. Out of the box, this menu has a few limitations:

Shows the "My Sites" menu in three colums and sorts the sites alphabetically.