When it comes to describing a large quantity of something, the term "whole slew" is often used. However, there are plenty of other synonyms that can be used to convey the same idea. For example, one could use the phrase "a plethora of" or "a cornucopia of" to indicate a large and varied number of things. Other options include "a myriad of," "an abundance of," and "a multitude of." Each of these phrases has a slightly different nuance, so it's worth considering which one best fits the context in which it will be used. Regardless of which synonym is chosen, the intended meaning should be clear: there is a lot of something.