Amirisu has been handling overseas sewing patterns for several years. When I first encountered it, it was like a shock when I found a foreign pattern in knitting.
Of course, it's written entirely in English, but the sentences are shorter than English patterns for knitting, and you should be able to read them all with a dictionary. It also has nice illustrations. I also made an introduction video because I want you to try using it once!
Here is a bonus video explaining frequently used terms.