Notion Feeder - Get rid of all the Feedreader apps and use Notion as a Feed Reader.

FeedFury - FeedFury was a powerful RSS supportive tool that helped to manipulate or to retrieve content data from multiple web feeds by functioning as an XML directory, the reader, and the aggregator.

Huddle - Huddle | The Enterprise Content Collaboration Platform

Kouio - Kouio is an RSS reader-based tool that allows quick reading efficacy with multiple websites, articles, or news stories, and more with comprehensive study or basic options to explore the content.

ShlinkedIn - A satirical social network where everyone's a thought leader

Reedah - Reedah is an alternative to the Google reader that allows users to read the content of various websites, blogs, stories, articles, and many more with RSS-based aggregator efficacy.