Do you mean a list of the people who are entered in each event?
To the best of my knowledge there isn't such a thing - for a lot of events players will only enter on the day that it starts anyway. So you've pretty much gotta take your chances with who you pick.
There are some players (Chris Ferguson comes to mind) who play pretty much every event, and will even play in two at once - a look over the past few year's results should give you a vague idea who some of these players might be.
When it comes to some of the mixed game or more obscure events (the HORSE and deuce-seven, particulary), again it doesn't hurt to have a look at the results from previous years, as there are some players that rarely if ever stray from the hold 'em events. I'm pretty sure you won't see Joe Hachem or Phil Gordon in the deuce-seven with rebuys event, for example.