What site could I use to find some more original/specific styles ?

Hi, as it says in the title i'm searching for more unique clothing (I have some styles and type of clothes in mind) but all the sites I go on only offer basic clothing, what most people wear, simplistic, or any generic clothes (which is exactly the style I already have and have not wanted for years now)

Whether it's irl or online, I could never find outfits that are more cottagecore, star themed, darker, medieval (it's a big mix but I like multiple styles, I wanna be able to change when I like)
I've heard Vinted isn't the most ethical, and leboncoin (i'm french) doesn't offer much more, both are for second hand but they also don't offer what I want. My app for eco friendly brands mostly just have generic styles as well. And my thrift stores in my area don't offer much that could fit into my style, I went in some multiple times but nothing caught my eye no matter the one I went to.

I could learn how to upcycle and embroider what i want on my clothes, but it'd take time for me to make it actually good as I have no skill in it + my clothes actually aren't the best bases to start with.

Is there any option, available in France, that you guys know I could use ? I'm really tired of not looking like me but being unable to change it ethically