If I was you I would take a bus to Ghent or Brussels for the window girls. But if that’s something you didn’t want to do you could go on the site wannanonce (french adult work) most won’t speak English. If you are desperate you could find street walkers on rue de Courtai. But to go back to my original point I would take the bus to Ghent or Brussels for way more options at a cheaper price and better quality. Only an hour away via bus
