Ask HN: If your Back end is Elixir/Phoenix, what is your Front end Stack Like?

I love using Elixir/Phoenix to build APIs. I find myself wishing for Elixir on the front end as well. Have seriously considered ReasonML/React but have concerns about hiring if I ever expand.

For people that have a backend in Elixir/Phoenix, what is your front end stack like? Do you like it?