Hi !
Im Levi new here and new in the world of SEO, please dont judge if my questions are silly.

Back on the days when the site was built we thought it is a good ideea to have subdomains that together with the domain name represent our main keywords.
ex. https://stansted.tonorwich.uk, https://heathrow.tonorwich.uk, https://luton.tonorwich.uk, https://gatwick.tonorwich.uk.

There is content on this subdomains, would it make any difference from SEO perspective if we create slugs that redirect to these subdomains? for example creating https://tonorwich.uk/taxi-minibus-vip-tesla-norwich-to-stansted that redirects to https://stansted.tonorwich.uk ? Or better create these slugs with slightly different content?
Any ideeas would be appreciated.
Thanks in advance!