"Project Zero" is from Harvard's Graduate School for Education, and this webpage http://pz.harvard.edu/thinking-routines#CoreThinkingRoutines has a whole list of Thinking Routines. Look, for example, at an image of the pdf that you can download for one of my personal favourites: See-Think-Wonder:
The PDFs are free, so I'm planning on downloading them all so that I have a folder on my computer that I can go to when I need inspiration or a change of routine. I thought that you may find them useful, as well!
Have a great day!