Researching

I am in need of a researcher to undertake a project that will involve researching and analyzing the top 20 best selling/trending products that are selling online. These could be from toys, healthcare, beauty , home or DIY products. It is important to me that credible sources are used, so the researcher should leverage their own judgment and knowledge base when determining relevant sources. I will be looking for a detailed summary of the findings rather than data charts or a comprehensive report.