Easily apply templates to your category archive pages and posts with this plugin.
Valid templates are files placed your theme folder with the following code at the beginning of them:
For Post Templates: Template Name: Blog Template
For Archive Templates: Archive Template: Blog Template
Through this plugin’s options panel, you can choose which templates are applied to categories and posts. Even choose their priority over one another. You can even apply a template to an individual post. 
Please <a href="http://aarongloege.com/blog/web-development/wordpress/plugins/wordpress-plugin-category-templates/#respond" rel="nofollow ugc">report any bugs</a> you come across.
Enjoy!

Category Templates

Give your categories and posts their own individual templates.

Brainstorm Force

Rami Yushuvaev

Adam @ WPCrafter

Full Width Page Templates For Your Website
Does your theme offer full width page templates? Need freedom to design beautiful full width layouts with page builder like Beaver Builder, Elementor? Need a complete blank template without header or footer for your landing pages?
This plugin adds Fullwidth Page Templates to overcome these limitations.
<h4>Here is a quick video explaining how this plugin works</h4>
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/LsIrXPHC0xM?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<a href="https://bsf.io/fullwidth-templates-demo" rel="nofollow ugc">Try it out on a free dummy site</a>
Blank Template
<ul>
<li>Removes header, footer, sidebar, comments, title and leaves you with a plain canvas</li>
<li>Awesome for landing pages where you need complete control over your layout</li>
</ul>
Full Width Template
<ul>
<li>Removes Sidebar, page title, comments and stretches the layout to full width</li>
<li>Ideal if you’re using a Page Builder</li>
</ul>
Bonus – No Sidebar Template
<ul>
<li>Just Removes Sidebar</li>
<li>Perfect if your theme does not have No Sidebar option.</li>
<li>Rest of the layout & styling will remain intact.</li>
</ul>
Made to work with Page Builders 
When you’re using a Page Builder, things like the default page title, boxed layout, extra margin and padding usually get in your way. This plugin puts you in absolute control and removes all unnecessary elements from your layout.
Dead Simple 
It adds three simple options for your pages & posts. Just choose the one and you should be all set.
Potable & No Lock-in 
If you’re anything like us, you care what happens when you switch your themes. Generally changing theme means, you will need to edit all your pages and change templates. But if you’re using a plugin like this – you won’t have to worry about it.
Supported & Actively Developed 
Need help with something? Have an issue to report? <a href="https://github.com/brainstormforce/fullwidth-templates/" rel="nofollow ugc">Get in touch</a> with us on GitHub.
Some of the popular themes
<ul>
<li>Genesis Framework by StudioPress</li>
<li>Primer Theme by GoDaddy</li>
<li>Twenty Sixteen</li>
</ul>
<blockquote>
<h4>Disclaimer –</h4>
This option works on most of the themes; but it might not work on few depending on it’s layout structure. 
Please open up an issue on GitHub or send us a pull request for adding compatibility with your theme.
</blockquote>
Project by <a href="https://www.brainstormforce.com/" rel="nofollow ugc">Brainstorm Force</a>.

Fullwidth Templates for Any Theme & Page Builder

When using a Page Builder, things like page title, boxed layout usually limit your creativity. This plugin helps you go fullwidth on any* theme.

Category Templates vs Fullwidth Templates for Any Theme & Page Builder