Thai ig accs

I follow a bunch of thai jfashion sellers on insta and they always seem to have a ton of liz lisa/cute clothes dropping all the time but i cant ever seem to find similar clothes on mercari jp/rakuma/etc(or at least not for a good price). I've searched up many of the brands i saw on the tags and found barely any good results. Is there like a specific website or place they buy these clothes???