Hi
There are always people looking for reliable couples.
What I would suggest you do is post in the geoxpat section, and list your experience, if you have worked in Hong Kong before, for how long, if you have looked after newborns before, your cooking abilities, if your husband has a driver's license, or experience working with seniors, etc. Prospective employers are more likely to contact you if they know where you have worked previously and what skills you have.
Good luck to you both.