There are many, many running clubs/training groups in Toronto and the key is finding one that 1) Is either close to home or work, 2) Has a coach that is approachable and you feel comfortable, 3) fits your schedule.
For uptown, XSNRG Run Club, Eglinton and Yonge area, Tuesday evenings 6:30pm, from May to September meet in Sunnybrook Park - Sports Pavillon parking lot. There is also a group that meets in the west end of Toronto too on Thursday evenings at 6:30pm in front of the Running Room 3315 Bloor St. W.
For downtown, Running Rats run out of the Running Room Commerce Court also on Tuesday evenings, meet at 6:20pm and run at 6:30pm.
Longboat Roadruners, Wednesday evenings at 6pm, University Settlement House (McCaul Street between Queen Street West and Dundas Street West) behind the OCAD building, or Saturday mornings 8:45am at Grenadier Cafe in High Park.
Toronto Penguin Club, another Tuesday evening run group, meeting in the east end of Toronto at the Shoppers Drug Mart on Danforth Avenue at Coxwell (just east). 7pm start.
I believe various Running Room locations also have running/training groups.
