What is the collective noun for a suit of?

There isn't a widely recognized collective noun specifically for a "suit of".

However, you could use these options depending on the context:

* A set of suits: This is the most straightforward option for a collection of suits.

* A wardrobe of suits: This emphasizes the collection as part of someone's clothing.

* A collection of suits: This suggests a curated group, perhaps with historical or aesthetic significance.

You could also use a more descriptive phrase like "a selection of suits" or "a range of suits".