Most of them are biased against Trump, of course, and follow a fairly obvious strategy: "Hillary is extremely unpopular, we cannot make her more popular, so let's make Trump even less popular."
It works very well. Just to make this clear, I'm a European left-wing liberal democratic socialist, not a Trump or Hillary supporter of any kind. But I've seen many US elections and it was never like that before. It's as if all US media and news organizations have sold out to the highest bidder at once. (To be fair, I don't follow that many of them, just a few newspaper sites like L.A. times, NY times, TV channels like CNN, Fox, nbc and a few social media sites.)