The Krotek

Customizable widget and shortcode to display tag cloud anywhere you want. You can use it as standard tag cloud widget, as shortcode in any post or page, or both ways. Tons of options allow you to fine tune cloud layout to your needs.
STANDARD FEATURES
<ul>
<li>Display list of post, category or link category tags.</li>
<li>Define number of tags to be displayed.</li>
<li>Set custom tag separator.</li>
<li>Select tag taxonomy: posts, categories or link categories.</li>
<li>Choose cloud mode: shortcode only, widget only or both.</li>
</ul>
PREMIUM FEATURES
<ul>
<li>Define smallest and largest tag size.</li>
<li>Select size unit: px, pt, em or percent.</li>
<li>Choose layout: standard flat cloud or unordered list.</li>
<li>Order tags by name or count.</li>
<li>Sort tags ascending, descending or randomize.</li>
<li>Define list of tags to exclude from cloud or include only.</li>
</ul>
You can purchase Premium version <a href="https://thekrotek.com/wordpress-extensions/tag-cloud" rel="nofollow ugc">here</a>.

Custom Tag Cloud

...but it at least is a little better than the one that comes with WordPress.

Free version is not very customizable...

Customizable widget and shortcode to display tag cloud anywhere you want.

Thomas Schmall

Tag clouds and Archives are useful for visitors, but also for search engines to find and index what topics your blog relates to. “Post Tags and Archives” makes it easy to add Tag Clouds or Archives to posts and pages via shortcodes. 
Before, you could only put it in the sidebar or widgets. That could hurt the search ranking for relevant terms and crowds the sidebar. So one either had to truncate the cloud and archive – or get rid of them (or use some more complicated trickery). 
Now you can just drop them in your posts and change the look easily via the options.
<h3>Options</h3>
Should be self-explanatory.
The advanced features: Please be careful with the HTML parts. 
The archive-format setting “options for dropdown-menu” is for people who want to setup forms. You have to add a proper form yourself – with select/post and all. Then this feature will add all archives (in the type you chose) as 
<h3>TODO</h3>
<ul>
<li>add products tag support 
Probably like this: 
$args = array( 
 ‘number’ => 15, 
 ‘taxonomy’ => ‘product_tag’ 
); 
return $args;Theoretically functional: from WP 1.5 (most features from: 2.5. “separator”-option from 2.9, “Tags-Order” for tags feature only from 3.5)</li>
</ul>

Post Tags and Archives

Display the Tag Cloud or the Archive directly in posts and pages, and change their look in the options.

Custom Tag Cloud vs Post Tags and Archives