I think this question was more asking about saving interesting reads than managing tabs, which is why I want to recommend Pocket, my favorite app of all time. It let's you save articles for offline viewing from anywhere (email, social media, news apps, web—yes, there are browser extensions), add tags to categorize them, and read them on your computer/phone/tablet later. It's great to have an offline source of interesting reads that I've saved throughout the day, and whenever I'm bored/standing in line/on the train I pull out Pocket. Plus its great b/c I essentially have a catalogue of every single article I've ever read which has come in handy many a time. Highly recommend!