Lots and lots of discussion on that same topic, with many alternatives not only listed but discussed, here: https://www.bogleheads.org/forum/viewtopic.php?t=415

Lots and lots of discussion on that same topic, with many alternatives not only listed but discussed, here: https://www.bogleheads.org/forum/viewtopic.php?t=415838 https://www.bogleheads.org/forum/viewtopic.php?t=415838