Clojure, Racket and Guile are really nice. But especially Common Lisp is underrated - it is an interactive, compiled, high-performance language. What Lisps often suffer from is a lack of libraries compared to Python. For example, Clojure and Kawa run on the JVM. Guile has good POSIX bindings. Steel is implemented in Rust and can call into it, which means it can use its libraries.