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In my opinion, there are plenty of good alternatives to Go such as Nim, or Python if performance allows, and even languages like Zig, V, CommonLisp, and D depending on the use case. I don't get why people keep mentioning Rust in threads about Go. It's perhaps a replacement for C, C++ and Ada - though for the latter only if you're okay with switching from self-documenting code to unreadable gibberish. Rust's philosophy is pretty much the opposite of that of Go, and it is neither designed nor suitable as a high productivity, easy to use language.

IMHO Go generics are simple and useful, particularly for container libraries. They are fairly readable, unlike template programming and macros in other languages. Together with the any type alias for interface{} they will make code more readable.

I do hope that Go stays at version 1, though, or that it at least takes a long time to add new substantial features and get version 2. Slow change is one of the many advantages of Go and I'd rather see them improve the compiler in hidden ways.