The State of Developer Ecosystem in 2021 Infographic | JetBrains: Developer Tools for Professionals and Teams
https://www.jetbrains.com/lp/devecosystem-2021/
The top-5 languages developers are planning to adopt or migrate to are Go, Kotlin, TypeScript, Python, and Rust.
The top-5 languages developers were learning in 2021 were JavaScript, Python, TypeScript, Java, and Go.
The 5 fastest growing languages are Python, TypeScript, Kotlin, SQL, and Go.