The dissatisfaction with “established” news sources is real. There has been a worrying trend in media towards heavy editorializing, partisan bias, and selective reporting. All this is happening in newspapers and television news, also online.
But the answer to that problem is not to gravitate to “alternative” news sources which would see all these problems compounded at a much higher degree.
The answer to problematic media is to diversify your media intake, but also to make sure not to select even less reliable news sources. Either something is news or it is not. There is no “alternative” news, just as there are not “alternative” facts. There can be different interpretations of the same news and facts, just as much as media can have selection bias.
Ideally, selection bias can be overcome by indeed looking at news from different angles, and by maintaining all-out skepticism. Selection bias is nothing new, and has been a regrettable feature of newspapers for ever. You know that if you gravitate to a more liberal agenda, then the New York Times and the Washington Post are for you; and if you are on the more conservative side, it’s the Wall Street Journal and the Washington Times. Same with television, and with internet news.
Most problematic, however, are state media run by dictatorships. Russia Today, Ruptly, Sputnik, Al Jazeera, the Global Times, etc., may sometimes indeed carry legitimate stories, but they will not criticize the regimes in their own countries, and try to spread biased Soviet-style disinformation about the West. Regrettably, some of these sources of “news” are becoming more popular amongst Western youth who prefer critical reporting about their own countries – which is ok, but you will need to keep this in perspective. Soviet-style sedition campaigns work by eroding trust in Western democracy and making dictatorships sound more appealing in contrast.
There is not the “one news source” that explains everything. This is when we enter the realm of conspiracy theories and “alternative” news. The internet may make illegitimate content seem legitimate very easily, but again, diversification is the key here. Despite all the problems with established media, there is no alternative to solid and competitive journalism, everything else is just someone’s private opinion.