Edir Pedro

When you use WordPress as a CMS, it’s very common to create so many sidebars that when you try to manipulate each one on the Widgets page, you get totally crazy trying to drag and drop the widgets to the right sidebar. Because of this problem I did the Many Sidebars plugin that simply organize all your sidebars and let you work on each one solely.

Many Sidebars

An interface addition for Widgets to let you increase the number of your Sidebars without lose your mind.

Trevor Anderson

Split sidebars and widget areas into responsive columns.
Two simple widgets are provided, “Layout: New Column” and “Layout: New Column on New Row”.
Simply place these in your widget area where you’d like to create a new column (split) or new row of columns.
Gutter size and responsive collapse options are available in the Customizer -> Widget Columns panel.

Tuxedo Responsive Widget Columns

Just tested this plugin, and it works exactly as I hoped for. I can now have complex layouts in any widget areas. 
Of course it's best used for horizontal widget areas like footers, etc...



Works perfectly!

Split sidebars and widget areas into responsive columns.

Many Sidebars vs Tuxedo Responsive Widget Columns