In my experience: just pick one that you'll be using, e.g. Emacs Lisp or something for scripting, and dive into practice. Most of a lisp is little different from other imperative-functional languages, except for a taste of weirdety from the 60s and more functional freedom.
You could pick something like ClojureScript if you're using JS elsewhere―in the Lumo incarnation to avoid JVM's compilation and startup time. Though ClojureScript does add a level of complication. Other transcompiling variants like Fennel or Hy are also feasible but are probably poor on documentation and tools for a beginner.
You could pick something like ClojureScript if you're using JS elsewhere―in the Lumo incarnation to avoid JVM's compilation and startup time. Though ClojureScript does add a level of complication. Other transcompiling variants like Fennel or Hy are also feasible but are probably poor on documentation and tools for a beginner.