Adds a sidebar comment (an inline box that includes commentary text) to a post

preeve9534

Aside Widget

Display arbitrary sidebar content conditional upon a particular post or page.

Daniel Iser

HTML5 Widgets

This plugin allows you to change the DIV/Container element of each widget to one of the new HTML5 Semantic tags.

Martin Lormes

Set Aside

Change the post format on all posts in one category. Useful when you switch from styling "Asides" based on category to the new post formats.

niw2cp

HTML5 Semantic Elements

Adds HTML5 and semantic elements as blocks in the Gutenberg editor.

seanbdurkin

SBD Aside

The SBD Aside plugin is a WordPress plugin that allows bloggers to easily create small side-bars for there entries, called asides.

dreamreal

Often, when a long block of text is being written, secondary content not 
germane to the paragraph in question is relevant, but out of scope of a 
given paragraph.
<pre><code> For example, this is text explaining that the author is using
 far too many words to be useful.
</code></pre>
This plugin allows users to write [aside]commentary[aside] and have it 
rendered appropriately.
<h3>History</h3>
Version 1.0 
 – First release

Alternatives to Insert Callout

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