Wattana Panich is amazing... the aroma from their broth engulfs that whole area. Too bad their portions are quite small, even the 100 baht ‘large’ doesn’t really fill me
I would recommend Heng Chun Seng at Rama 4 for Chinese style beef soup, which they serve in an old hot charcoal steamboat. Have the nostalgic feel eating from it and I always overload the soup with their deep fried garlic