There ofc will be niches but overall your business plan would be much more dependent on the type of service you provide, sale channels (B2B vs B2C), volume etc.

There ofc will be niches but overall your business plan would be much more dependent on the type of service you provide, sale channels (B2B vs B2C), volume etc. Also many people conflate with a software company with a company that provides services through software. There is a huge difference between say a commercial software company like say Sage, Microsoft or Oracle and other “software companies” like Uber or InstaCart. All of these have drastically different business models even within the same category. Then you have the software delivery as a service companies that can range from consultancy and staff aug to full out project outsourcing. But in general if someone wants to learn business fundamentals they should learn business fundamentals before trying to apply it to a specific field.