C# for real work, Python for scripting or specific use-cases where it has excellent library support & Golang if I need something closer to C or very lightweight or easy for people to understand.

Rust is interesting but the compile times aren't great.

I use Python for real work too, but my current employer does not use it as much.

It's too dynamic/slow for me and the dependency system is a mess to the point where the entire Javascript world is better. Actually I forgot TypeScript, been using that for more than a decade now. So much better than the dark old days of JavaScript :)