The jeans I have gotten the last years are from Nudies and Livid.
https://livid.no/
https://www.nudiejeans.com/

So hard to know if a company is European... But I have four pairs of Pierre Cardin jeans, and will buy two more. By far the comfiest jeans I have ever had. I have to buy sizes for the German market as the Swedish sizes don't fit well, but those are great.

Which ever brand you are looking at, try to pickup a Selvage pair, it lasts longer.

Also, buying second hand or used clothes that's still in good shape, no matter the brand means the money stays in your community and still counts for a boycott.

Denham the Jeanmaker, from Amsterdam. A Day’s March, from Stockholm

Most of the jeans I wear are from ATO Berlin: https://www.atoberlinshop.de/

The company is in Berlin, the clothes are made in Portugal (at least they were last time I checked).

Any that last a long time bicycling? I keep wearing holes in the crotch.

There are very few models, but I am a big fan of jeans from varusteleka.com. Finnish brand, made in Estonia if I remember correctly. They cost twice as much as other pants but last four times longer.

I recently bought a jeans from Armedangels and I'm they are really nice

Diesel jeans are top notch. Italian brand, I really like it.