E-2 is not available to all countries.

You can first get an investor-based citizenship in one of the countries that have signed the tax treaty with the US.

It'll cost you about $50-100k extra.

Only CBI countries on that list are Grenada (200k+) & Turkey (400k), and USCIS put out a rule specifically for that situation, with additional requirements. From: https://www.uscis.gov/working-in-the-united-states/temporary...

> In addition, for those individuals who obtained treaty country nationality through a financial investment, USCIS may require additional documentation to show that the applicant has been domiciled in the treaty country indicated in the application for a continuous period of at least 3 years at any point before applying for E-1 or E-2 classification.

Plus E-2 visa is a non-immigrant visa, so it doesn't give you any kind of special pathway to green card. Might as well apply for an EBx at the outset instead of fiddling with an E-2 visa.

You're missing several. Montenegro and Macedonia are definitely available, and I think also Panama.

> Might as well apply for an EBx at the outset instead of fiddling with an E-2 visa.

EB-5 has pre-country quotas, and for some countries the wait can be quite long (for China it's around 10 years). It also is veeerrrryyyyyy slow, even with the initial form processing taking _years_.

You're right on North Macedonia (which again needs $200k, so terrible value for the $ hence the low takers) but wrong on others. Montenegro suspended its CBI program and Panama never had one, only a residence visa which then you use to naturalize after 5 years (plus it technically doesn't permit dual citizenship although enforcement seems non-existent)

For EB-5, China and India have a waitlist but that's only in the 'unreserved' category. There are new EB-5 categories now that both reduce the investment amount required and processing can be done in a couple months now. If one really wants to immigrate and has the money, EB-5 is still the best choice by far.