Linguistics.SE tends to attract various language-specific grammar and usage questions, which are off-topic here—we even have a special close reason specifically for that case.
But many of these would be on-topic on other sites in the network. For the one I'm most active on, for example, Latin.SE would accept several of the Greek and Latin questions that appear here. I've also seen quite a lot of questions about English Language and Usage, Russian, and German.
Would it be possible to add these as migration options to the close-vote dialogue? Right now the only migration option listed is to Linguistics.Meta, but we seem to get far more questions about English grammar than about site policies.
EDIT: And as of today, we are no longer in beta, and thus can have migration paths enabled!