Ask HN: How to discover potential for a website globally

I am responsible for online marketing for a global company, we have a reasonably small budget that has always effected the way we work i.e. completely ignoring markets that have a high cost to enter and focusing on smaller markets with proven ROI. Our company is potentially changing drastically in the net few months and I need to put together a report on what I'd do if I had an unlimited budget (whilst still being held to ROI/P&L). I am able to pout this together, however it will take me days/weeks to identify the opportunity for each of our products for each country on the planet, and how to sell these. Has anyone had to do a similar thing, or reports regularly for a larger company that is already in most markets? Long shot but thought I'd give HN a try. Thanks!