Is there already a budget for this kind of tools? Marketing? Sales? R&D budgets? etc. If there is - who makes a purchase decision and who will be the user? Try

Is there already a budget for this kind of tools? Marketing? Sales? R&D budgets? etc. If there is - who makes a purchase decision and who will be the user? Try to find contact with these people, setup a meeting and talk to them to understand - how they are solving this problem today, what tools they are using? How much do they pay? What is the biggest problem with the current solution? etc.. - more you learn, more you validate your idea and partially market. Try to have several such conversations. Then you can build a "sales" demo - it can be a presentation with slides, or it can be quick demo-prototype (it's possible to develop it in 1-2 weeks in some cases). Then you can setup a meeting with the most friendly potential customer from previous conversations and do the first demo run with them, then refine demo based on feedback and do it again