Hello! I’m writing an article on the Ides of March and am looking for a source who is knowledgeable on the topic. My deadline to connect with an expert is today, but we have a couple of days to do the interview.
A human interviewable source? Does it need to be a live person-to-person interview? If so... have you tried talking to local museums or local universities? If you're looking for an electronic interview exchange then you could try looking through the flaired user page.
I don't know where you are or the nature of the work you're undertaking so I'm not sure how to help more specifically.