In Canada, an extension cord with several outlets is usually called a power bar. They are easy to overlook until a room runs out of outlets. A few minutes choosing one is better than daisy-chaining several cheap ones.
A smart plug is a different tool: it adds a schedule or app control to a single appliance, such as a lamp. It is not a way to add outlets.
What to check on a power bar
The details on the product page tell you most of what you need.
- Number of outlets and the length of the cord
- The maximum load stated on the unit, compared with what you plan to plug in
- A recognised Canadian certification mark such as cUL or CSA
- Do not plug one power bar into another
Where a smart plug fits
A smart plug suits low-power devices where timing helps. Check that the app works with the voice assistant you already use.