What are the best skinny jeans, but a bit cheaper than JBrand in EU ?

Maybe you could try a pair of Jbrands on and look for the same style online and have them shipped to you?

If not, there are Cheap Mondays but I'm personally not a fan.

It's surprising but my friend did buy some skinnies at H&M and Dorothy Perkins that looked just amazing on her, it might be worth looking there if you have those stores where you are