Regardless of what others may lead you to believe, the fact of the matter is that no single business model or strategy would be ideal for all types and nature of businesses. Every business type requires an individual business strategy for which efforts will have to be made towards competition research and market analysis.
Your main focus should definitely be where in the world you may be looking to run your business as that is what determines what strategy or business model you could be adopting for successful operation.
For example, starting a business in Mexico would be different from starting one in Austria as they would have completely different regulations and each would require a strategy based on country information and profile that you could get as needed for your business type.
What you could do following an idea that you get for a business is to research and the easiest option is to go through published material online on market information for a specific country as well as city depending upon whether your business type would be local, national or regional. Local businesses as suggested on strategyinbusiness.net are easy to set up and manage so be sure you know what you require as well as what your vision may be.
You could liaise with experts in business management for tips and guidance on the right set of strategies that you could be adopting in starting the kind of business that you may have in mind. Sometimes, your ideas could be stolen too and this is a serious problem that one could be facing which is why people hesitate fully disclosing their business ideas before anyone.