If you are comfortable managing your own money, you can go with Vanguard and do the portfolio setup, rebalancing, and adding funds by yourself. The reason people go with Vanguard is for the extremely low fees (0.19% average expense ratio). They do have a managed option with help from an advisor, although I haven't tried that service. Betterment & Wealthfront use Vanguard funds heavily in their portfolios.
