Weird set of choices.
So clojure and elixir can be your hooks into fp community. To a degree they are similar in being dynamic fp langs with macro capabilities.
Python and node are more like "common dev platforms" these days.
I would first establish if I am looking for job market utility (both elixir and clojure offer great utility, but job market is more problematic). Yet if you are looking to learn and expand your dev horizons elixir or clojure are great options (I do clojure so a bit biased towards it).
That really really depends on what you want to do, can you add a bit more information? Also those choices are not mutually exclusive, you can run Clojurescript on Node.js, but you would probably be better off using normal Clojure.