Have a browse through the GeoExpat classifieds. There are loads of helpers looking for work.
https://geoexpat.com/classifieds/helpers/helper-available-full-time
Would recommend making a list of what you're looking for in a helper: cooking skills, experience with babies/toddler or older kids, good cleaner, good communicator, good references (do call up previous employers).
As you scan through the ads, the ones that you like so you can shortlist the candidates. Then text each one to ask them to call you for a phone interview.
Have some simple questions prepared for the phone interview. If you have trouble understanding her or she you, move on to the next person. As a working Mum I have to give a lot of instructions over the phone, and we need to be able to communicate.
If she answers the simple questions well, move on to some more complex questions. If she enjoys cooking, ask what her best dish is. Or if she takes care of the kids, what games she plays. If the phone interview goes well, ask her to meet you for a face-to-face interview.
Most helpers are free on Sunday or Sat and will come to your home. Line up a few interviews on Sunday. If you have kids, make sure they're around and see how they interact with each other.
Also you can check the helper's passport to see who her previous employers are. Just to verify her work experience and the number of yrs she's been in HK.
Do call previous employers for a reference. If they have worked for Chinese families, who can't speak English ask a friend or colleague to call for you.
Or you could place your own ad and let the helpers call you.
Lastly, have a read through this article
Hiring A Helper: Interview Tips - Hong Kong GeoBaby
