You need to see the laptop page and scroll down to get a Keyboard section. Now you can select en-US https://slimbook.es/en/store/slimbook-kde/kde-slimbook-16-co... I think folks outside the EU zone need to pay customs duty on imports. So, if you are in the US, go for System 76 (AMD/Intel), HP Dev One (AMD), or Dell Dev Edition XPS (Intel).

Those keyboards were listed as out of stock when I looked. Perhaps this has changed in the meantime.

On the US layout it says "Agotado", which means they have run out of them.

BTW, almost no one in US may like those layouts, but for each of the speakers of those languages they are quite important.

I disagree. Most people do fine with US-intl keyboards, perhaps with extensions to specific keys such as alt gr to type a few dedicated diacritics or other altered letters. The trouble with regional keyboards is that they frequently move special characters around for very little actual reason (and that isn't saying anything about the whole AZERTY thing, which is incomprehensible).

AZERTY is plainly the worst.

Try again, looks like they fixed the page.