The hard thing is finding which ones are, and which ones aren't.
I rely on a web of trust. When I see another new hot AI trend, I check it against whether any of the people I've followed via RSS or manually curated on Twitter, Mastodon, etc (many of whom I met IRL) have said anything about it.
There's still a an undercurrent of people blogging and posting and chatting who are trustworthy and haven't sold their soul to marketing. Or at least are clear when they say things that are marketing.
But it is ever harder to find those voices, especially if you're new to an industry.