If you would like to show reviews on your Shopify store, it could be achieved with using an app.
The first step would be to decide which review app you’d like to use on your Shopify store, and you can find the apps on Shopify store reviews search on the link here. The most popular apps the merchants are using for reviews are Yotpo and Stamped, so we recommend checking them out.
The second step would be to export your Amazon Reviews in a CSV file as explained on the link here.
The third step would be importing your reviews to Shopify by following instructions on the link here.