What kind of investment accounts can I get, while receiving disability SSI income.

I am on SSI income, yearly of $8000. What kind of accounts can I open for a savings for myself on a family member for the future to come. Can I get a 401k or open a trust account, Roath account. Can I invest into the stock market. Any idea and Wil u have to pay taxes on it?

Please list my options because I want to save for the future