OpenRice tells me there are nearly 6,000 restaurants in Hong Kong serving "Chinese" food (or food as we call it in Hong Kong
).
Can you start to narrow down the search to district of Hong Kong and type of Chinese food?
Obviously, places will be busy at New Year and Chinese New Year (you didn't state which new year), so it will be necessary to book well in advance. Thank you for thinking ahead, as for some reason many visitors don't always do.