RSS readers that manage mailing lists: Inoreader: https://www.inoreader.com/blog/2020/02/declutter-your-inbox-subscribe-to-email-newsletters-straight-into-inor

RSS readers that manage mailing lists: Inoreader: https://www.inoreader.com/blog/2020/02/declutter-your-inbox-subscribe-to-email-newsletters-straight-into-inoreader.html https://www.inoreader.com/blog/2020/02/declutter-your-inbox-... Newsblur: https://blog.newsblur.com/2016/07/01/newsletters-in-your-newsblur/ https://blog.newsblur.com/2016/07/01/newsletters-in-your-new... (open source and self-hostable) Feedly: https://feedly.com/i/pro https://feedly.com/i/pro Also, Kill the Newsletter (https://kill-the-newsletter.com/ https://kill-the-newsletter.com/) converts newsletters to RSS feeds, and is open source/self-hostable.