How to do I get the cheap clothes,shoes,bags to resale in my country?

I am from United States,I have my own store in the middle city? I am selling t-shirt,Jeans, sandals,sneakers,handbags,necktie and so on.I need the cheap merchandise with high quality.Accurately,I need supply can do offer drop shipping,can offer wholesale price. How do I do now? I found a lots of online wholesale store, But I am not sure them .How do I know them? Are they trust?