Let me know if this looks any good (it's an experimental service I am building)
http://194.113.73.23:1234/?topics=cryptocurrency%0D%0Abitcoi...
cryptography or cryptocurrency?
there was a cool finance clone of HN a few years ago called boredbanker.com but it shuttered, I enjoyed it for the brief months that it existed.
If you want finance focused stuff, coindesk and theblockcrypto are pretty standard. decrypt is ok too. Lots of animation/annoying stuff - few sites are as simple and familiar as HN at this point.
You might look to see to what extent the news sites of interest have an RSS feed--and then use an RSS newsreader.
yes try cryptocurrency.com
https://feed.rekt.news/day