Miniflux - Miniflux is a minimalist web-based RSS reader. It's very easy to use.
RSS Reader - RSS Reader is a software that enables you to get updates and news about any website or blog.
BazQux Reader - Fast, clean and unique feed reader
RSS Guard - RSS Guard is simple (yet powerful) feed reader. This is the official project repository. - martinrotter/rssguard
Raven Reader - Offline ready desktop RSS Reader without any distractions.
Fluent Reader - Modern, open-source desktop RSS reader