Beehiiv

Beehiiv is a strong match for the 'Medium' concept. It offers a comprehensive platform for content creators, particularly focused on newsletters, which aligns well with online publishing. It explicitly provides a rich text editor, a recommendation network for distribution, paid subscriptions for monetization, and detailed analytics for engagement metrics. While it's primarily a newsletter platform, it also supports web hosting for content, which functions similarly to a publication management system. The platform also mentions user profiles, tags/topics (segmentation), email newsletter integration (its core), audio content (podcasts), and mobile optimization. Social sharing and search/discovery are also inherent to a platform of this nature.