That… Already exists.
Take a look at 2001’s Matoran settlements, or Koros, on the island of Mata Nui. You’ll find a vivid and thought-out culture within each one which distinctly separates it from the others: the scholarly and reserved Ko-Matoran, the laid-back and casual Le-Matoran, the spiritual and empathetic Ga-Matoran, the hardened and militaristic Ta-Matoran, the laborious and intuitive Onu-Matoran, and the artistic and sports-obsessed Po-Matoran.
That already exists too. Each Kanohi shape is associated with a specific power, and nearly every single mask shape in the films, sets, and comic books has some kind of power attached to it. The diverse amount of powers in those Kanohi is absurdly large as well, from growth to mutation to invisibility to repulsion to charisma - and even masks that can open doors from one dimension to another.
Considering this is a fan website, where you’re encouraged to design and create whatever you wish, you could come up with your own idea for hypothetical Kanohi in the shapes you envisioned with unique and interesting powers.