Marshalls would be one. Goodwill or other thrift or consignment stores.. even ebay More on reddit.com

Uniqlo! I often look for better names/ materials on Vinted. I’ll buy decent brands of cashmere in summer when there is less demand and sellers tend to negotiate on price. You don’t mention your gender. I am female and really like Boden trousers (the Westbourne suit me well) and I will often buy nearly new off Vinted for £15-20 instead of £100 a pair. More on reddit.com

My daughter is a professional thrifter. She will style people. I suggest you find someone like her, who can help you define a style and how to find good quality clothing at thrift and resale stores. She has an education in fabrics and the industry, that helps her to identify quality as well as how garments are made. Overall I think it's the way to go and she saves us all thousands of dollars a year just by knowing our wardrobes and what we may need more of. She also will pick us up fun things as well as shoes and boots. I think this is becoming more common. I'm sorry to say I'm not sure how to help find someone who does what she does, I'm guessing through social media. Best wishes! More on reddit.com

Pay attention to the quality of the fabrica and the stitching, and what type of fabric is used in the product. Shopping in person makes this a lot easier, and all brands can have hits and misses. I've had shirts from Target last a decade plus and then $100 jeans have holes after a year. More on reddit.com