Ig it depends on where u live? I've tried taobao, but that contributes to fast fashion, so I stopped buying from there
Here are a few places that mostly have thrift/reseller clothes:
- Depop
- Vinted
- Ethicloset
- Ebay
- Fb marketplace
There are also (depending on the country you live in) some ig accts that sell clothes, that are either hand made......
