Vue.js Or React.js?

I'd suggest moving away from JS and instead learning Elixir and the Phoenix Framework. Elixir is a functional programming language based on the Erlang vm and is designed for massive scaling, reliability, speed, ease of development, and more. It is used to make highly responsive applications and lots of apps you wouldn't expect have been built on it like Discord. Also there is a high demand for developers and a limited number of people that know it so Elixir jobs are paying through the roof with limited competition!