Soooo, is there somewhere we can read a translation of this light novel?

There's a webnovel version. Basically the first, unfiltered darft, so to say. And it's not finished.
https://www.novelupdates.com/series/the-villainess-wants-to-marry-a-commoner-wn/

Then there's a light novel version. Usually the improved version from the webnovel. But even more bad news, it's not fully translated yet. But at least the translated ones went a bit over the manga, so you get at least another arc, I think?
https://www.novelupdates.com/series/the-villainess-wants-to-marry-a-commoner/