Shein is more or less in the same vein as Romwe. Although they’re a valid business and not a scam, don’t expect high-quality clothing from them.
You can also check out Etsy. It’s a site that sells items made by hand, and it’s a great place to find unique clothing. However, be careful when ordering from Etsy. There are scammers who use the site to sell fake items, so you should make sure that the item you order is authentic before buying it.