Hi Emilia,
Welcome to Microsoft Community.
I'm Hahn and I'm here to help you with your concern.
I understand you're looking to purchase the Microsoft Surface Go 3 with 8GB RAM in Canada.
Unfortunately, I do not have access to information regarding specific restocking dates for the Microsoft Surface Go 3 in Canada. As of now, according to the Microsoft Store page, Microsoft Go 3 is out of stock. Buy Surface Go 3 (Tablet Specs, Price, Size) - Microsoft Store
However, I recommend you contact their Microsoft Surface live support for the latest information on availability. Contact Us - Microsoft Support
Remember to check Microsoft Store periodically, as restocks may happen unexpectedly. I hope you find your desired Surface Go 3 soon!
Your Sincerely
Hahn - MSFT | Microsoft Community Support Specialist