I hardly could find a suitable replacement. Many “modern” languages got their first hype cycle when people wanted to replace all OOP with functional programming, does not have any built-in OOP functionality, etc. However, I can write my own runtime (or use someone else’s), so I decided to deal with its own issues rather than try to force Rust into procedural stuff, try to reinvent VTables, declare values the wrong way (var name = value : Type), and so on.

Addendum: I do use wasmtime though now, which is (ironically, especially if you count the language rivalry) written in Rust.