Look for raw denim! The real stuff- it’ll feel thicker at first and will take breaking in. You’ll be paying 100+ most likely, but they’ll last you a lifetime. Brands are really dependent on the style/cut of jeans you’re looking for. Not up to date on brands anymore since I haven’t had to buy a new pair in over ten years. My favorite brand was/is Rogue Territory, but I’m not sure if they are available in the EU.