It doesn’t really make much of a difference.
I just read the headlines most of the time, they all basically say the same thing. They report on events that happen and push mainstream narratives, usually of the liberal or neocon slate. That’s basically 99% of them.
Alt news may have some better perspectives and sometimes report on obscure events the mainstream ignores or talks about barely but they tend to say things that are blatantly untrue and are usually filled with promotion of xianity, especially the conspiracy alt news.
They’re not really news per say, but I like Project Veritas and CancelThisConspiracy. Those tend to give you a lot of good info on the intricacies of the govs and big corp corruption.