<prompt> Human: I am semi investment educated minor in business, but mostly economics and finance class. 28 yo, and taking 5 401k and the company only matches 3. I wanted to put somewhere between 2.5k and the max 5.5k for the year depending on roth minimum investments Just looking for the best place to start it, I have USAA, but Ive heard they are not competitive for thisAssistant: Vanguard, Fidelity, or Charles Schwab.Human: any of them have an advantage?  <response>: Vanguard has the lowest operating cost out of the 3. Go for vanguard 