Earlier quoted context omitted.
Any low-fees index fund.
In terms of throwing off a lot of passive income, they just aren't very good though. Looking mainly at income-generating investments, the best index one might be Vanguard LifeStrategy income (with provides income and moderate capital appreciation to protect against inflation). The yield? 2.1% Nothing to write home about. [1] Is there some high-yielding, regular-income fund I should know about? Even allowing for sorta…
The chart in [3] shows a few funds against the S&P 500. Prices seem to largely track the S&P index. Maybe there's a way to chart the dividend yield over time, too.
[1] http://www.forbes.com/sites/moneybuilder/2014/08/22/choosing...
[2] http://gyroscopicinvesting.com/forum/stocks/what-about-a-hig...
[3] https://www.google.com/finance?chdnp=1&chdd=1&chds=1&chdv=1&...