Where should a frontend worker go?

Question

Backend

Hello everyone, I myself write in reactjs / angular, but I really want to try myself in the backend, there is an opportunity to go to good courses, where would you advise me to go to ruby ​​(RoR), php, python (django), nodejs?

Answer 1

Look towards nodejs when you get bored - you will know what to do next

Answer 2

Well, you can learn 10 more languages.
Or realize that business needs:
a) your show-off
b) your certificates
c) your ability to never admit that you don’t know something
d) a guarantee that you will not beg for a salary increase
Each of these points can be stumbled, but you have to suffer for it.

Answer 3

If you write in JS, does it make sense to change the platform?