We regularly test projectors and update our projector recommendations page. We don’t feel that there is one projector that is better than the others, but there are certain minimum specs that we recommend for optimal results, which are outlined on the projector recommendations page. One thing to pay close attention to is whether or not the projector has both vertical AND horizontal keystoning capability. This is extremely important for times when you will be shooting from an angle (which is typically quite often, so you can put your stand in the corner of a room rather than somewhere in the center).
If you need help getting started with equipment for digital gobo projection, start with our digital gobo equipment recommendations page. You can view all of our recommended projectors here. We regularly update this list, so make sure to check back often!