There are OCaml and F#, but I still see those are very much niche languages with pretty small communities.
- https://without.boats/blog/notes-on-a-smaller-rust/ - https://without.boats/blog/revisiting-a-smaller-rust/
It's also niche, but https://gleam.run/ might be a candidate alternate language, depending on your use-case.
> ...it seems that a lot of software engineers really want
Software engineers may want it, but management wants elasticity in the human resource supply.Therefore, teams choose JavaScript, Python, Java, and C#.