Hi Ehab, welcome to the forum. Your best bet at finding an e30 is to....
1)keep an eye on the for sale section here
2)check and use PMs here to contact sellers
3)keep a shoe box full of money on hand and be ready to see a car at a moments notice
from what I've seen, e30's sell very quickly in Toronto and surrounding area very quickly.
good luck and post pictures once you find something!