Go here.
On the right-hand side of the page are countries listed, by name. Click on any country to see the summary of options for residency via investment, or in some cases, citizenship via investment.
Assuming this information is correct, there are many more options than I was aware of. Of course, there are undoubtedly special requirements or restrictions that may not be apparent from those summary pages.
Investment visas cost from the tens of thousands to as much as $10 million, depending on type of visa and the country. Most are in the low US$100k or Euro $100k to a few hundred $K range. In most cases these are investments – if, for example, you sell out in five years, you may have made an income from your investment. Consequently, investment visas are, in a way “free” and may even pay you!