Specific to child labor, don't buy any chocolate sourced from Africa, only South America. Cocoa producers in West Africa widely use child labor for harvesting, and efforts to monitor this have failed.

Likewise, any clothing produced in Bangladesh runs the risk of being produced by children or in dangerous conditions. Sub-contracting is common there, and undermines any kind of supplier verification that major brands perform. The cheapest clothing, like Shein, is produced in awful conditions in China, but I think most Chinese manufacturers are doing better than their Bangladeshi counterparts. I don't know about other Asian countries.