Halichoeres:
Melanurus - Relatively peaceful but will hold its own with aggression
Iridis - Normally peaceful however they can hold their own when established (They can be difficult to ship so they’re labelled as Expert)
Vroliki - Usually peaceful but much like the melanurus, they don’t take well to bullies and will be relatively boisterous
Chloropterus - Usually all out aggressive but I hold hope to this species being moderate as my specimen is getting to the top of the hierarchy and doesn’t seem to be too aggressive
Rubricephalus - Much like the melanurus and vroliki these can be rather boisterous and withstand aggression
Marginatus - Again, much like the Melanurus and vroliki these can be boisterous but also withstand aggression.
Cirrhilabrus:
Melanomarginatus - Part of the complex Scottorum, these can withstand aggression however they aren’t as aggressive as their close relative, C. scottorum is
Naokoae - Part of the Complex rubrivebtralis, these are a moderately aggressive species and will withstand aggression.
Solorensis - Part of the complex cyanopleura, much like the naokoae this is a moderately aggressive species and can withstand aggression.
Roseafascia - Part of the complex Lanceolatus, these are rather docile for the most of it however they can handle aggression
These are the two most common genera to find being owned in captivity, obviously there will be more this is just a short list of Halichoeres and Cirrhilabrus.