Depends on the goal of the survey and Brand/Product type. If sufficient budget of the company/brand/product, you can address to already experienced survey agencies who are working in the region, like SIS, Kantar, Nielsen, GFK etc. If you want to do work with low budget by yourself, I would recommend to use potential of the Social Media that is still underrated. Ex., in Facebook brand/goal related groups, local communities. You can do some targeting with questionnaire, cooperation with influencers etc. Social Media gives lots of possibilities. Be aware what market you are targeting because not all Social Media channels are strongly presented on different markets.