I like the sphere you have chosen to work in. I am doing this kind of business for 7 years already, and since day one I am getting more and more enthusiastic every single day. But, If I were in your position, I would totally go through all the websites and search day and night for the most suitable one. Some ideas might be Real estate photography, Real estate app development, Property management, House flipping. But, it would be brilliant if you asked for advice from a professional. They can pick you the best one. You can try the guys from https://www.successionresource.com. They were there for me when I just stepped into business.