Nice Jay, my wife had the same luck as you before, now she is teaching in a Government school (of course she was accepting students while studying her degree and post-grad, just in case anyone got the idea you could go from tutoring to government schools). However I as a Native Speaker have not had quite the same luck and found tutoring centers my best option.
zhieeep, are you looking for just cash from tutoring, or something quite specific with who you want to tutor? What is your preference? I have found 8 hours on a Saturday through (would you believe) the Facebook Marketplace, quite cool what you can find online.
You asked for websites, so earlier I recommended Tutor Kingdom, I also have had luck on Facebook Marketplace (as afore mentioned, providing you use Facebook). Also if you use Facebook there is a nice group for NET Teachers in Hong Kong with some good resource links.