A great site for polling information for the upcoming federal election can be found at 338Canada.com – Poll Analysis and Electoral Projections. The main page has seat (number of ridings won) projections as well as popular vote. You can drill in to see provinces and then the projected vote in individual ridings.
As of the day the election was officially called, September 11, 2019, the projected popular vote is:
Of course, as in the US, popular vote doesn’t mean much. The projected number of seats each party will win is:
Note the huge error bands around these projections.
Go check the projections for your riding and see if one of the parties you support has a chance of winning, or if you might as well just protest vote.