The most dominant clown will be female, the second a male, and the third will stay a juvenile, will be banished to the corner to the tank, or killed. I'm not saying it can't be done, but from my experiences this is what happens. There are a lot of variables to take into account as well. Fish species, tank size, rock work, territory, anemones...etc etc....
Your best bet to experiment would most likely be the percs or occel's. You can try and see what happens but be ready to seperate, and have an alternate location for it.
Hope this helps