What is the best language to learn in addition to PHP?

Question

Programming languages

Now I am an ordinary php-middle with a salary of 110. I want to change jobs next year. The main goal is to increase income. After analyzing hh in Moscow, I came to the conclusion that in terms of the level of salary, puff is at the bottom. To receive 170-250 tr. you need to be a php-god, despite the fact that, for example, Python can get middles this way.
What do you suggest? My thoughts:

• Improve yourself further in PHP. Try to become a senior.
  
• Python, learn django and more. The idea is good, there are a lot of vacancies. But there are fears that higher than a junior
  without real experience will not be accepted, no matter how you teach. And PHP experience is not useful here at all. Starting everything from scratch apparently.
  
• go. In principle, as I understand it, complements python / php. Usually do not require knowledge of Go in its purest form. And no, you don't need a few years of experience. If only he could. But only 15 vacancies at the moment I found.
  
• NodeJs or something else.
  

Answer 1

I would focus on databases. Complements not only php, and has a positive effect on salary.

Answer 2

My personal recommendation is JS+Python.
Python greatly expands your options not only as a web programmer. And JS is very practical.