Talking about types of entities or can say corporations I would say choosing the best takes time and considerations as your choice would majorly affect the way your business is running, impact the liability and control over the company. The best way to figure out is by figuring out that which structure gives you the more amount of advantages to achieve organizational and financial goals.
According to me Cooperative and Sole proprietorship is better. As cooperative is made of the same people whom they are going to serve. And sole proprietorship it is a simplest way, you are your own boss.