Fell in love with a purchase, want more.

I bought a pair of these pants in Japan during my last trip, and I’ve been obsessed with them. They’re now out of stock in my size (size 1, or 28/30) and I really want to get more of these or similar pants. Any idea where I should be looking online in the US?

https://citytokyo.com/shop/g/g244640001676/

I really like the way they feel, the wide drape, and the pattern on them.