How might Elon Musk benefit from Donald Trump's second term as US President?

Billionaire Elon Musk, a vocal supporter of US President Donald Trump, might benefit from the Republican candidate's second win as head of state. Trump's campaign advisor, Brian Hughes, had said that Trump envisions Musk leading a "commission" which will work to make the US government more efficient. Musk may also benefit from tax cuts, which Trump has been vocal about.