I was wondering if here is the best place to ask about lyrics of music, since I did not find any other place for that.
It depends on what you want to exactly ask. Asking about the meaning behind lyrics isn't really on topic here, but it is on topic on the fans site. If you want to ask more about techniques for creating lyrics along with compositional directions about lyrics then yes they are on topic.
Just ask your question. If it's sensible (and answerable) someone will answer it. If someone else then decides it's not worthy of the archive and removes it, you've still had your answer!