Marks & Spencer, Sezane are European retailers and ordering from them means paying duties, so I don’t buy from them.
Zara & Mango, fashion forward but quality control is not the best. I buy one or two items from each, online from Zara and in person only from Mango. Not really my favorite stores.
Uniqlo is one of my preferred stores especially for basics (natural fabrics only) and athletic wear like sweatpants and heattech line. Also, buy some things for DH sometimes.
Aritzia, lovely puffers and cashmere hats. I don’t have anything else from them. Although I sometimes like the design, I find they sell a lot of polyester and other synthetic materials. Not a fan.
COS is my favorite store. I love natural fabrics, minimal design and colors. For me is it the best. I’m fortunate to have 2 stores nearby to shop. I also buy it on Poshmark. No online orders ever.
Not mentioned:
H&M - I buy more from them than from Zara or Mango. I like some of their denim and the premium line. There is a store close to me and also, they have a great online ordering service. I’ve been buying swimsuits from them for the last 3 years.
MUJI - another Japanese brand. I buy a linen or cotton piece once in a while. They are very much like Uniqlo.
Massimo Dutti - the upper line from Inditex (Zara) - my second favorite brand. Has more of Euro feel, classic with some casual/boho vibes.