Total Recommendations: 2
If you liked
Fullmetal Alchemist
|
...then you might like
D.Gray-man
|
Very similar feel. Both have a setting with the feel of Industrial Revolution England. Both protagonists have a dark past that led to deformations/enhancements to their bodies. Both join organizations designed for people with special abilities to maintain order. They also have similar art styles, though D.Gray-Man is a little more "realistic."
If you liked
Gravitation
|
...then you might like
Junjou Romantica
|
Yuki and Usagi-san are very similar characters (writers, distant, painful pasts). The stories themselves work out differently, but both have elements of serious relationship development and comedy.