Contact a Nigerian broker. Nigeria has a stock market, if anyone knows how to trade and buy American stocks from there, they do.
If you’re having trouble finding one, check your spam folder. You’ll be surprised how many generous offers you might find!
Through broker companies?
Examples? Most of them are not offering such service.
Maybe Interactive Brokers can do it, though Nigeria was not explicitly listed. Also IB is geared for traders and has a $10 monthly fee (less commissions paid) if your account is under $100k USD. $10k minimum to open account.