Hello,
I'm sorry but I don't understand your question.
HikaMarket already is a multi-vendor component with a "commission system" for the vendor sales.
"social login" is not related to HikaShop or HikaMarket but is provided by third party Joomla plugins.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.