(No offense) All the answers make no sense. How can you advise a country with so few information about the start-up?

Dimensions to assess that would totally change the selected country:

- A start-up in which business domain?

- What will you sell?

- Who are your targeted customer? Where are they located?

- Where are you main competitors?

- Where is the best "ecosystem" in your domain that could help you/partnership with?

- Do you need some VCs?

- Tax optimization requirements?

- What is your "exit strategy"?

Hint: be located close to your competitors, partners and of course... customers.