Where can I buy real denim jeans?

Strange question, I know. But every place I've looked for jeans recently only has stretch jeans, not real denim. What's up with this? Is this trend so pervasive that no one's actually making and selling real denim anymore? All of these new ones look and feel like Pajama Jeans.

For real 100% cotton jeans, try Wranglers or Levi’s premium lines and search for rigid denim. I also check Amazon’s filter for strict cotton. One small tip: I keep a leather belt and a slim wallet from accessories https://o-o-o-c.com/collections/accessories-1 to avoid pocket sag as the denim breaks in. They handle wear without stretching out the waist.