Slots Where to actually find a machine/game you like

Hello Everyone,

Does anyone know of a reliable way to find where certain machines are offered? This goes for table games as well.

I found Aristocrat's website has a 'Where to Play', and they have an iPhone app, but that is just aristocrat.
Most casino website have some info, but definitely don't list all the slots they have, and don't even keep their table games offered up to date.

My situation is for example "I'm travelling to state ABC, and want to know if any casinos in the area have Game XYZ."

 

Boyd properties have a Slot Finder on their website.

GG

 

I believe Caesar's does too.

 

Thanks. I've found a few, but nothing comprehensive.
http://www.worldcasinodirectory.com/ seems okay, but I don't think they keep it up to date.