Question

According to you which is the best language to learn except English?​

Answer 1

$\huge\boxed{\fcolorbox{yellow}{red} {Spanish/Español}}$

It is the second most spoken language in the world and we do listen to many Spanish songs. It'll be nice if we could understand the songs in their language.

Also if you visit South America or certain places of North America, you'll find that people are mostly speaking in Spanish. It'll be easier to communicate as well.

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Thus learning "Spanish" is the best according to me other than English.