For a self-hosted RSS feed service, there are several options:
Tiny Tiny RSS: It’s an open-source web-based news feed reader and aggregator for RSS and Atom feeds, praised for its Android client availability.
FreshRSS: A free, self-hosted RSS and Atom feed aggregator that is known for being lightweight, powerful, and customizable. It also supports multi-user access, custom tags, has an API for mobile clients, supports WebSub for instant push notifications, and offers web scraping capabilities.
Miniflux: A minimalist and opinionated feed reader that is straightforward and efficient for reading RSS feeds without unnecessary extras. It’s written in Go, making it simple, fast, lightweight, and easy to install.