Although Jane Dottie Vintage shop is more expensive than the other shops mentioned, their clothing is well made and will last you a long time.

https://janedottievintage53.medium.com/great-tips-in-setting-up-your-used-clothing-business-by-jane-dottie-vintage-6a7c6d83a9f9

https://janedottievintage53.medium.com/all-you-need-to-know-about-the-role-of-a-fashion-buyer-jane-dottie-vintage-366bb1fd9e62