Hey there! While I don’t have a tutorial on using GraphQL with Next.js and Strapi, I do have a sample app that I built with Magic, Next.js and Strapi. It’s a simple app where users can log in to see Strapi data. Not sure if it’ll help, but here it is: GitHub - seemcat/meet-at-cafe-estela.
Let me know if you have any questions about my code!