I own languagelearning.club. I want to add sub-domains such

I own languagelearning.club. I want to add
sub-domains such as english.languagelearning.club; but I have read that
languagelearning.club/english will be more beneficial for SEO purposes. If I set up subdomains rather than subdirectories will I be able to auto redirect users from
english.languagelearning.club/xx to languagelearning.club/english/xx where
xx represents multiple values of pages/categories? Will it make any
difference if there are addresses such as ../xx/yy/zz? (category/page/post)
What advice can you offer, thanks very much.