Best language for an International Relations/ Econ major?

I’m a native Spanish speaker and have taken classes throughout middle/high school. I want to (and am required to) take language classes (past intermediate level) for my major. I was considering German, French, and Russian; however, my advisor said French or Russian would probably be best. I know that French would be easiest; however, I’m still indecisive. I am wondering if Russian would be beneficial, and if I would be proficient/fluent by the end of university? Will I be more appealing with French or Russian to an employer? Also, would it be best to just wait until my sophomore year to begin language classes? Is a beginner language class going to be easier than something like international politics or an intro to econ?

French is more practical than Russian, for starts.