The Five-Man Band is a group of characters whose members fall into archetypes which all complement one another. They are a very specific team with skills that contribute to the group in a unique way. Here are some places where the trope occurs in fanfic.
A Cure for Love: The new Kira taskforce falls into this, though they have yet to get along or get anything done.
Ebony Dark'ness Dementia Raven Way vs. Canon
Futari Wa Pretty Cure Blue Moon
Pretty Cure Perfume Preppy
A Rose And A Thorn 4: Sonic the Hedgehog
|The Leader||Project: Mirage|
|The Big Guy||Project: Midnight (Unusually for a Big Guy, he has the importance of The Lancer, and gets the above heroine.)|
|The Smart Guy||Ashura (He is the green glitch from Sonic 1, and fills this role despite that fact that he is incredibly evil and the resident villain.)|
|The Lancer||Project: Shadow (Shadow the Hedgehog before the angst-job)|
|The Chick||Project: Sonic Speed (Sonic the Hedgehog before he turned blue)|
|Team Pet||The Gizoid (the one from Sonic Battle)|