>> I'd love a RSS reader that groups items on the same topic.
We had the same concern with everyday industry news, and so did some of our customers, so we built it a while back!
Our Newsroom feed reader uses NLP and ML to group similar articles for low-noise research/reading:
https://newsloth.com/#features
Currently, it detects and groups articles from a few hundred popular global news sites, and gradually growing to cover more sources.
We also have a feed builder/generator that turns unstructured public webpages into structured RSS feeds, to make it a flexible and unified feeds platform: