我想搵小學ge補習社(要旺角or大角咀)

I would suggest you to register on some tutor hiring websites. I registered in 2 tutor hiring websites and they have introduced to me quite good quality clients. The tutor fee can be negotiated with clients. The following are the links

Tutor Square
http://tutor.square.hk/

100 Tutor
http://www.100tutor.com/100tutor/

I am not sales or staff for the above tutor centre. Therefore, you may want to ask more details by visiting the above 2 websites or call them directly.