MERN(MongoDB, Express, React, Node.js) is another popular full-stack development. It is usually considered as an alternative to MEAN stack development. Below is the architecture of MERN:
MongoDB - Database layer
Express - Middleware for Nodejs
React- front end (User Interface)
Node.js - web server logic
MERN stack Development
The main difference between MERN and MEAN stack is Angular and React. Both Angular and React does the job for your requirement. Its personal choice which one to use.