Flea Market? Or something similar.. (Brussels)

Hello All,

I have an abundance amount of clothes and shoes sell. Some are new and most have barely been used.

A friend has recently moved into a new apartment and wants to consolidate items.

Does anyone know how and where I can do this? Ive researched the Place jeu de balle flea market but can't seem to find any way to register.

Any advice is greatly appreciated! PM or post!

Thank you!