Try the iOS app Unread: An RSS Reader. I use a self-hosted FreshRSS instance with API access enabled as the Unread app uses the Fever API (see link below). The Unread app typography is absolutely beautiful. I use the app without a subscription as it’s expensive but given how great it is, I’m considering subscribing to support continued development.
https://freshrss.github.io/FreshRSS/en/developers/06_Fever_API.html
Don’t forget about all the government subsidies as well.