The one other crowd calendar that I know of is
Undercover Tourist. As someone who doesn't go to the parks often enough to have a real sense of crowds without the calendars, I still find them helpful. Problem is that I look at all 3 (Touring Plans, Kenny the Pirate, and Undercover Tourist) and they never agree! So in the end I look at the rationales and all 3 sets of recommendations and then combine bits and pieces of their advice with the things I know (like wanting certain parks later in the trip so I can get hard to get FPs or needing to go to a given park on the only day a specific ADR was available).