I've been obsessively tracking YouTube niche data for months now. Not opinions. Not "I think this niche works." Actual CPM data, growth rates, competition scores, and revenue potential — updated twice daily. Here's what I found. And honestly, some of it blew my mind. The niches EXPLODING right now (real growth rates): Niche CPM Growth Betrayal & Story Narration $18 +310% English Learning Content $7 +288% AI Video Production $16 +250...