A group of shrimps is called a troup — same word, same answer, whether you spell it “shrimp” or “shrimps.”
This page and What Is a Group of Shrimp Called? cover the exact same collective noun. Head over to the main guide for the full breakdown: where “troup” comes from, other loosely-related terms like school and shoal, real shrimp facts (their heart is in their head!), and a full FAQ.
→ Read the full guide: What Is a Group of Shrimp Called?
Related: Collective Nouns for Crustaceans · A Troup of Shrimp