What investment options are open to e-resident?

I know from experience that if you have residential status in countries where IG (a broker) serves, you can buy stocks and other assets through this broker. But I wonder what doors to the stock market, asset market or broker can be unlocked with e-residency? Some banks open a terminal for customers to buy assets overseas too, is one of the e-residency friendly bank offering a good portfolio of assets to invest in?

Did you ever figure this out?