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.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.