I recently made a post looking for an RSS feeder with some sort of intelligent content surfacing system, and have just stumbled upon exactly that. All analysis is local and so far seems to be quite good.
Github: https://gitlab.com/ondrejfoltyn/nunti
FDroid: https://f-droid.org/en/packages/com.nunti/
Is it fully local, or does it work with self hosted aggregators like ttrss, freshess, miniflux?