I tend to (as others have mentioned) focus on languages or fields I'm familiar with. Lots of articles on frontend stuff, and JS libraries, even ones I don't use. Mainly just to get a feel for what is out there. A lot of the time I like to read comments more than the actual article on a lot of things, because I find opinions on HN (specifically comments that have long threads with multiple replies) to offer a better understanding of things than the actual article. A lot of articles are somewhat biased, intentional or not, and reading the comments (most of the time) offers a better perspective from people actually using/working in/experiencing, things the articles are talking about.