Both Canada Post and couriers who attempt delivery will leave a printed note if they don't find anyone at home.
The note will tell you where and when your parcel will be available.
With Canada Post that's usually the neighbourhood postal outlet.
With couriers, it may be more difficult. Some will make a more specific arrangement, others will insist that you pick up at their location, which may be in an industrial park somewhere.
In either case, bring government issued photo ID.