This task is about content curation, about finding a tool to keep up-to-date with all subjects important to you.
Finding content curation tools isn't hard, there are a lot of different tools out there waiting to be used.
I have listed a couple of content curation tools I use on a weekly basis.
Buzzsumo allows you to type in any keyword or domain, and then provides an ordered list of the top shared content around that topic. You also see the exact amount of times the content was shared and on which platform. Very handy!
Feedly curates content around specific keywords, topics, domains, and so on. You can easily organize content into boards and flag content to read later. Feedly tries to take the strain out of curating content manually.
Pocket is an app as well as an extension you can add to your browser that will then save articles to read or link to later in one organized location. Pocket allows you to easily tag articles to group relevant topics or themes together.