Without mentioning the specific skills, interests, location, and financial information, I can not pick some precise business for you. While there exist other factors that you need to take into account such as market demand, startup costs, competition, scalability and your ability to do better than others in terms of delivering of high-end products/services. Evaluate the viability of businesses within the sphere of your consultancy or the subject of your conviction. Look it up in data, make sure your idea is perfect after the validation process and then make a solid plan for the start of any enterprise. Be sure the business you are composed of fits your strengths so you can generate profits accordingly. Your voice is important! -