If it is group customization, there will be many companies in Baidu's "professional wear", and choose the company that you are satisfied with.
If it is an individual, it is recommended to go directly to the counter of the mall to buy it. If you are young, buy G2000 zara's slim fashion. Or shirts, Youngor Romon, chinour and other well-known domestic brands.
Ordinary tailor shops can't make suits, so check online: Guan Qi Yangfu Qingshan Yangfu sent Deng Yangfu Ruibang Yangfu and other well-known VIP custom shops to see if there are any direct stores in Songjiang.
I hope I can help you.