StoryChief

StoryChief is a content management platform that offers features for creating, distributing, and analyzing content, aligning with several 'Medium' concept features. It provides an AI & SEO Content Editor which implies a rich text editor, multi-channel publishing for distribution, and analytics & reporting for engagement metrics. While it doesn't explicitly mention a membership monetization model like Medium, it focuses on content creation and distribution for businesses and agencies. It also supports collaboration and content approval workflows, which can be seen as a form of publication management. The platform also mentions tags and topics for content organization and social sharing capabilities.