Market Research of Real Estate Buyer's Agents or Agencies

I need to do a Market Research of Top and Average Real Estate Buyer's agents or agencies to understand opportunities available in this sector.
1. What essential services are provided by Top & Average Buyer's Agents to their clients? Does it meet customer expectations?
2. What are value added services that are provided by them? How much are these valuable to the customers?
3. Services expected by customers are not provided or partially provided?
4. What's missing and therefore opportunities available in the market?
5. Customer demographics - Type of customers who hire a buyer's agent e.g. property investors, property developers, people working in specific sectors or job profiles, people living outside of Australia etc.
6. Data on Online searches for buyer's agent - trends etc.
7. Areas/suburbs where very few buyer's agents are servicing?