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.

GNPublisher

GN Publisher makes RSS feeds that comply with the <a href="https://support.google.com/news/publisher-center/answer/9545420" rel="nofollow ugc">Google News RSS Feed Technical Requirements</a> for including your site in the <a href="https://publishercenter.google.com/" rel="nofollow ugc">Google News Publisher Center</a>.
The plugin addresses common RSS compatiblity issues publishers experience when using the Google News Publisher Center, including:
<ul>
<li>Incomplete articles</li>
<li>Duplicate images</li>
<li>Missing images or media</li>
<li>Missing content (usually social media/Instagram embeds)</li>
<li>Title errors (missing or repeated titles)</li>
<li>Cached RSS feeds causing slow updating</li>
<li>Delayed crawling by Google</li>
</ul>
After installing, click on the ‘Dashboard’ under GN Publisher on your plugins page for additional information about applying and troubleshooting issues related to the Google News Publisher Center.
New in 1.5.24 
Compatibility with Apple news publish
New in 1.5.11 
Google Reader Revenue Manager support.Reader Revenue Manager provides publisher solutions to deepen audience engagement and convert subscribers or contributors.
New in 1.0.9
GN Publisher now displays the time of the most recent ping and feed fetch from Google. This helps when troubleshooting the dreaded ’empty sections’ issue in the Google News Publisher Center.
New in 1.0.6
GN Publisher now pings Google when feeds are updated. This can help with faster updates in your Google News Publication.
<h3>Support</h3>
We try our best to provide support on <a href="https://wordpress.org/support/plugin/gn-publisher/" rel="ugc">WordPress GN Publisher plugin support forum</a> forums. However, We have a special <a href="https://gnpublisher.com/contact-us/" rel="nofollow ugc">team support</a> where you can ask us questions and get help. Delivering a good user experience means a lot to us and so we try our best to reply each and every question that gets asked.
<h3>Bug Reports</h3>
Bug reports for GN Publisher: Google News Compatible RSS Feeds are <a href="https://github.com/ahmedkaludi/gn-publisher/issues/" rel="nofollow ugc">welcomed on GitHub</a>. Please note GitHub is not a support forum, and issues that aren’t properly qualified as bugs will be closed.
<h3>PRO Version</h3>
Take you Google News Feed experience to next level by using our <a href="https://gnpublisher.com/pricing/#pricing" rel="nofollow ugc">GN Publisher PRO</a> plugin which contains the following features.
<ul>
<li>Content Scraping Protection </li>
<li>Exclude Categories From Main Feed </li>
<li>Google News Sitemap </li>
<li>Compatibility with Flipboard.com</li>
<li>Compatibility with PublishPress Authors</li>
<li>Compatibility with Translate Press</li>
<li>Compatibility with Yandex Turbo</li>
</ul>

GN Publisher: Google News Compatible RSS Feeds

GN Publisher makes RSS feeds that comply with the Google News RSS Feed Technical Requirements for including your site in the Google News.

RSS Synchronisation vs GN Publisher: Google News Compatible RSS Feeds