And Emacs. Sure Elisp isn't the best lisp around (Personally I would give that title to Common Lisp), Emacs is a good Lisp environment.
I'd say elisp is a competitive lisp in its own right, at least at the language level. There's even a promising gradual typing system: https://github.com/emacs-elsa/Elsa
Which one is most similar to the entirety of Genera and also has a reasonable price for hobbyist use?
And the Lem editor (an Emacs-like in Common Lisp).
Rather just "an Emacs" - it was a family of editors, after all, with GNU Emacs being the only one living offspring.
And portacle.
Although Portacle isn't being maintained any more (at least as far as the main developer was concerned last time I looked a few months ago).