Chat group for buy/sell/bless preloved baby items

Which platform do you have better chance to sell preloved items? I have tried Carousell and FB. Sometimes I sold something on Carousell but none on FB. I created chat group in hope that mummies can find each other to buy/sell/bless their baby items. https://chat.whatsapp.com/HzR7IZCjevVA7ZAaM27DyB