django-vue-template contains example code for a Django backend. There is also another project named django-vue-template by a different developer so take a peek at that one as well if the first one does not suit your needs.
A friendly introduction to Vue.js contains the code and brief explanations of what it's doing so you can learn to create your first Vue app.
Developing a Single Page App with Flask and Vue.js walks through all of the environment configuration, project setup and coding you need to do to build a legitimate Vue.js application that uses a Flask API on the backend.
The official Vue.js getting started documentation is fantastic and highly recommended as a top starting resource.
Replacing jQuery With Vue.js: No Build Step Necessary explains why you may want to replace existing jQuery code with Vue and how to do so with minimal steps, depending on the complexity of your applicationi code, of course!
The Vue.js publishes their own documentation page on how Vue compares with other frameworks. It is refreshing to see a straightforward technical analysis without the posturing that often comes from authors of one project discussing other work in the same space.
Building Modern Applications with Django and Vue.js combines Django, Django REST Framework, Vue.js and Auth0 (an authentication web API) in an introductory web application.
Exploring Data with Serverless and Vue: Automatically Update GitHub Files With Serverless Functions combines a serverless backend with Vue.js on the front.