Many newspapers have a place for listing religious activities. In Saskatoon it is called Perish Notes. Here is an example:
Buddhist Meditation: Free class Sundays, 4 p.m. to 5 p.m. Beginners welcome. Easy to follow instructions and guided meditations taught by the monks from the Buddha Meditation Centre of Saskatoon. People from all backgrounds welcome. Information at MahaMevnawaSaskatoon.com or 306-374-2840.