The Land list covers Polaroid models and which film type they accept. Anything that accepts 100-series pack film will accept the Fuji FP-100C or FP-3000B. Both these instant pack films from Fuji are easily sourced. The Polaroid folding pack film cameras have an interesting styling and come in a multitude of variations.
Polaroid backs (there are several different models of back available) for the Mamiya RB67 and RZ67 will accept Fuji FP-100C and FP-3000B but will not fill the frame. They project a roughly 7x7 square image with a black bar on either side. I shoot both films on my RB67 Pro S.
There is also a rather unusual Polaroid back for the Mamiya system made by (I think) Arca, that allows two portrait format images to be shot side-by-side on the same piece of instamt film. I've seen examples online and the effect is very good with creative possibilities.