AFAIK, you won't find a list of ezP modules that can be plugged into v. 3 go achieve 2.2. functionality. The reason for that is that 3.0 is built upon an entirely different structure. However, if you take a look at the following article, you'll see how to implement some of the 2.2 functionality into 3.0. Some require simply creating a new content class (or using an existing one) while others are a little trickier.
