Every type of software has its champions among programming languages and sets of technologies commonly used together. For example, Python is often used for AI and ML projects, Java is a go-to for secure financial software, MEAN, MERN, or MEVN stack is good for I/O-intensive single-page real-time apps, LAMP, LNMP, or LLMP stack is often used for building websites, and C++ and C# are the best choices for game development.