Two suggestions with reasons. Job: JavaScript/TypeScript - Because like it or not, 'every' project ends up on the web sooner or later and every job interview

Two suggestions with reasons. Job: JavaScript/TypeScript - Because like it or not, 'every' project ends up on the web sooner or later and every job interview will ask if you know web programming or Personal Growth: Haskell - Because it will fundamentally change how you look at and approach programming. Even if you never write a line of Haskell afterwards and go back to Python the things you've learnt will make you a better Python programmer