I am in the UK.
I am not keen on buying clothes online personally. You can never tell how they will fit and it is a lot of fuss to keep sending it back. My daughter prefers to use online because she loves to try things on at home with her other clothes. She loves ASOS.
I have shopped with supermarkets who have reasonably priced goods. Primark for lingerie and thermal leggings, some odd clothes depending on their quality. Bought some nice jumpers in Gap in a sale. M&S and next too.
This year the fashion I don't like at all. Colours don't suit me or the style. Many items look fluffy and worn before purchase.