Tools to help you out in your work

Hey, I am researcing about the professions like CPA/CA/Accountants so I can make a system not just some random automatins but actual systems for them that will help them ease their job a bit. But, for that I need to gain information about what actually drains their time the most and what do they wish was there that could help them to solve the tasks that they want to be solved. So, would you guys help me out? Tell me anything and I mean anything that you want to be available to help you out for your work