No one else has replied yet, so I'll fill in for them.
Same advice for flasher wrasse is given by @evolved and @eatbreakfast, just one of each species.
The only exception are the leopard wrasse genus (Macropharyngodon) where one male of the genus can be kept with females of different species within the genus. But must be only one male.
Hope this helps.
It helps a lot! Thank you very much!