Research goes hand-in-hand with category based product research if you're a professional seller. Product & Pricing research is the most fundamental, the process by which you decide what to sell on marketplaces. Experienced sellers also spend a great deal of time doing competitor research, making sure that they understand who's already competing with them for sales.
Category based product info will be clearly shown in the tool, how many products were sold with the number of quantity. The platform provides maximum options to search seller type (Either for Business or Private, Item condition (May New or Old or Used), Buying option will be there for an added advantage (Either - Buy it now or Auction).