Want to open or invest in a business

My friend and I are both software developers. We earn quite well and want to start a business(can be any type)in Lucknow. We have contemplated a lot of ideas, ranging from games to 3D printing, but we never reached a conclusion due to our laziness or other issues. At this point, I am thinking we could also invest in other people’s ideas and collaborate with them if they really know what they are doing or have good insights into the current demand. Please let us know your ideas.