French
It's understandable why French is the second most popular foreign language in the world after English. 29 countries, including France and Canada, have French as their official language, so whether you travel to Tunisia, Senegal, or Switzerland, you should have no difficulties communicating with locals.
Since there are more than 300 million French speakers worldwide, every nation teaches the language. Additionally, French is regarded as one of the simpler languages to learn. And if you’re an English speaker, you may find French an easy language to acquire as the two share a common alphabet and a great deal of vocabulary. French is a Romance language, which means it has a connection to Romanian, Spanish, Italian, and Portuguese. Learning French can also help make learning the others a little simpler if being a polyglot is your goal!