If you have a spare tank that you can keep the adults in permanently then you could try dwarves or honey gouramis. Remove mum once spawning takes place and then dad once the fry are free swimming (just like with bettas).
But if that isn't an option then you could try a small group of Sparkling/Pygmy Gourami - Trichopsis pumila. If you densely plant then they could probably be kept with the fry, however you would still lose some to the parents.