Nick here from Shopify. Great question.
Depending on who you are targeting local citation can be very important/ effective for your website. If you are focused more on selling abroad to other countries or areas, it might not be as important.
Shopify has a blog article going into detail about where to list your business, local citation tips and more. You can see it here. I also found an article which has the top 50 local citation sites for the USA, UK, Canada, and Australia here.
All the best, Nick