Anything but Go. Go was created for stupid people. From one of the creators of Go:>https://news.ycombinator.com/item?id=18564643
Forth. Relevant pasta:>Sometimes as Forther you feel like a Jedi night. People think about>Forth as an ancient religion, with it's followers doing things like>standing on one hand and lifting stones with the force of their minds.>And well, The Emperor doesn't like Forth.
Just kidding again!
A language is a tool. You should pick the best tool for the job you want to accomplish
...that being said I'm most efficient in python for most tasks I do, but the languages that really fascinate me are the ones that allow you to extend their syntax (like forths and lisps).