lightsystem

The plugin is configurable letting you define what feeds to read and how often to read them. It also lets you decide whether you want to store the external images locally, inserting them into the media gallery, or otherwise simply hotlink them (that is the default).
You will find these settings in your administration page on the Settings->RSS Settings sub-menu.
Check out the <a href="https://github.com/LightSystem/WordPress-Plugin-RSS-Sync" rel="nofollow ugc">project on GitHub</a>.

RSS Synchronisation

Use this plugin if you wish to read external RSS feeds into WordPress posts.

Galaxy Weblinks

Disable Feeds WP is a WordPress plugin to disable all RSS/Atom/RDF WordPress feeds on your website/blog. It is very useful if you use WordPress purely as a content management system (and not for blogging). All requests for feeds will be redirected to the corresponding HTML content.
There are a couple of options to tweak the plugin’s behavior – go to <code>Settings -> Reading</code> to see them.
Here’s a link to the documentation for the plugin. This will help you learn more about its features and how to use it. 
<a href="https://wp-plugins.galaxyweblinks.com/wp-plugins/disable-feeds-wp/doc/" rel="nofollow ugc">Documentation</a>
For any feedback or queries regarding this plugin, please contact our <a href="https://wp-plugins.galaxyweblinks.com/contact/" rel="nofollow ugc">Support team</a>.

Disable Feeds WP

Disables all RSS/Atom/RDF feeds on your WordPress site.

RSS Synchronisation vs Disable Feeds WP