Whats a European made Framework Alternative Laptop for around 800€-1.000€?

What about MNT reform?

https://shop.mntre.com/products/mnt-reform

EU-made? Not much. Most 'EU-brands' I can think of (tuxedo laptops sells them with Linux prinstalled) are mostly some kind of rebranding of the same (Chinese) models.

Another solution, depending what you want to use it for, could be to pick a used laptop.

Older ones will still run Linux great and some of those older models are highly regarded for their repairability. See professional lines like older Thinkpad (not all of them) or the HP Elitebook laptops (I was a happy Thinkpad user but I switched to an Elitebook because I managed to get one for a real good price with a better screen than my thinkpad and depending the model, they both are easy to maintain) and maybe Dell too (I never used a Dell laptop, so I could not tell)

Tuxedo