Luke Cage and Iron Fist are an iconic duo, and they have been throughout every era of Marvel Comics canon. The first time these two worked together, they were collectively known as ‘Power Man and Iron Fist' before rebranding to the much more eye-catching Heroes for Hire. However, even before the two got together, their separate solo series laid the groundwork for a number of adventures that would unfold within their shared continuity.

https://screenrant.com/10-heroes-for-hire-luke-cage-iron-fist/