A 401k plan can offer low fee Vanguard funds. If your employee has crappy 401k fund options, you should take the issue up with your employer. They likely chose a inexpensive 401k administrator to run the plan to cut costs and left the employees with expensive funds to pick from. Alternatively, if you are self-employed you can open your own i401k through Vanguard. IRAs are great, but the contribution limits are not very high.