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You could try leo. Definitely inspired by emacs in many ways.

https://www.leoeditor.com/

If you use it for a while you get used to it. It's just another programming language.

Second this. The parenthesis look abhorrent because they are foreign, But that is where the real power of lisp resides.

You could try Edwin, based on Scheme.

Yi, in Haskell.

Good luck.

It is arguable that no such editor exists.

Take away the Lisp and you are already very unlike Emacs.

It's possible to write a language that is arguably a lisp, but without sexprs.

Elixir is one that comes to mind (It has the "big" Lisp things, like hygienic macros).

Actually, Erlangs concurrency model might well work very well for emacs, since you can spawn off hundreds of independent tasks with close to zero overhead, and use all available cores to run them on.

A good point. Sweet-expressions might be an example of such a language implemented as a Lisp reader macro, in fact.

https://dwheeler.com/readable/sweet-expressions.html