Market researchers

[Rihanna]

a person or company that collects and examines information about things that people buy or might buy, and their opinions about things that they have bought:

[Dianne]

someone whose job is doing market research:

[Hina Muqadas]

Market research is the process of determining the viability of a new service or product through research conducted directly with potential customers. Market research allows a company to discover the target market and get opinions and other feedback from consumers about their interest in the product or service.