After many years of RSS (Google Reader, then Feedly), I gave up on it due to sheer volume and now get my daily fix from curated email newsletters, a mix of news and tech-related ones. This post lead me to make an inventory of them:

http://www.nytimes.com/newsletters/morning-briefing-europe

https://qz.com/

https://webopsweekly.com/

https://www.finimize.com/

http://ben-evans.com/newsletter/

https://blog.ycombinator.com/the-macro/

https://labnotes.org/

https://aeon.co/

http://softwareleadweekly.com/

http://www.nytimes.com/newsletters/the-interpreter

http://www.phpweekly.com/

http://www.hackernewsletter.com/

http://www.electricdreaming.com/

https://www.dpreview.com/newsletter

And a few Greek ones, might as well add them:

https://insidestory.gr/

http://factnews.gr/

http://www.georgakopoulos.org/2014/05/newsletter/