enomoto celtislab

You are using a tag cloud of the standard, and you do not want to display tags that belong to the category not related to the article. 
Try this widget. 
Based on the category of the display article, this widget gets the tag from the article categories of related range. 
For the article there is no category of post page, etc., or by setting <code>all category</code>, <code>internal link article</code>, it displays the tag by examining the related category. 
If you check the ‘internal link article’, get a category from the internal links to articles.
Select Category related range
<ul>
<li>All Category (unrelated article)</li>
<li>Current article Category</li>
<li>Include child category tree</li>
<li>Include parent category tree</li>
<li>Include internal linked article Category</li>
<li>Exclude Category</li>
</ul>
Other parameters : Display format, Sort by, Order, Font size, Number of tags to display, …
<a href="http://celtislab.net/wp_plugin_DCTagCloud/" title="Documentation in Japanese" rel="nofollow ugc">日本語の説明</a>

DynamicCategoryTagCloud

Displays the tag cloud dynamically from related articles belonging to the category of the display article

teastudio.pl

Cool Cat Ideas

Tags All In One is a powerful plugin that allows you to display a customizable tag cloud anywhere on your WordPress site. 
You can select taxonomies, configure appearance, set the number of tags, and adjust sorting options.
For more information, check out <a href="https://teastudio.pl/product/tags-all-in-one/" rel="nofollow ugc">PLUGIN HOMEPAGE</a>.
Key Features:
<ul>
<li>Supports any taxonomy cointains ‘tag’ string in name </li>
<li>Legacy widget</li>
<li>Gutenberg block</li>
<li>Shortcode <code>[tags_all_in_one ...]</code> for embedding the tag cloud anywhere </li>
<li>Configure tag count, counter brackets, font size, sorting </li>
<li>Dynamic font size based on tag popularity </li>
</ul>
<h4>DEMO</h4>
You can see the plugin in action on <a href="https://coolcatideas.com/blog-software-house/software-house-czym-jest-i-dlaczego-warto-skorzystac-z-jego-uslug/" rel="nofollow ugc">DEMO PAGE</a>
<h3>Translations:</h3>
<ul>
<li>English (en_EN) – by Marcin Gierada</li>
<li>Polish (pl_PL) – by Marcin Gierada</li>
</ul>

Tags All In One

Display a customizable tag cloud from selected taxonomies with various sorting and styling options.

DynamicCategoryTagCloud vs Tags All In One