Thanks. My question is more of other runtime not specifically about the ones written in Go.
There are a few, but I suspect the most widely used would be wasmtime. It's written in Rust and can be used from Go [2] but requires CGo (as mentioned by GP).
[1] https://github.com/bytecodealliance/wasmtime [2] https://github.com/bytecodealliance/wasmtime-go