What would be a good alternative to JavaScript for browsers?

As a javascript/typescript dev of ~15 years I'm growing increasingly sceptic of the languages. It's definitely easy and flexible, but I find that there's an incredible amount of pitfalls that even senior developers run into. One thing I am certain about is that javascript has gone through a very large amount of changes in it's lifetime – it doesn't look at all like it did when it was released and its' intended usages have changed a lot. I can't help to think that there has to be a better way. Are we stuck with supporting mutable prototypes forever or what could an alternative look like? Personally I'd still want a scripting language, but one that would be a lot stricter. No binaries like wasm, less globals, preferably type safe. I'd also prefer if we could go a route that didn't rely on the event loop and supported multiple threads.