Discorss is open source, has AI summarization, automatic paywall skips, and can be entirely managed with slash commands. Best of all – self hosting is very cheap and trivial with Railway, so you can add your own customizations to how the RSS bot works.
I've been using a personal Discord server as my RSS hub – it's convenient and I can setup different channels for different newsfeeds (i.e. an HN channel for the frontpage).
I was using https://monitorss.xyz – but it's barely had any changes, and needing to manage the external UI has been annoying.
Website: https://discorss.fldr.zip/ Github: https://github.com/mergd/discorss