A pair of clowns or bangaii cardinals would be the best bet although not a sure thing. The trick isn't always to get the SW species to mate but for the babies to live.
Before you start, be sure you can be there for the fry at least 6 times a day for feeding. Be sure you have a proper setup so that your fry wont be hurt, eaten, or killed by your equipment and fish. Make sure you have baby brine ready.