RSS feed setting?

I have the Responsive Classifieds theme installed in a subfolder on my site at https://ehangar.com/classifieds

I would like to display classifieds listings on my main homepage at https://ehangar.com.

Currently, the only way I know how to do this is to display the RSS feed as I have a widget on my homepage theme that allows me to do this.

Can someone please tell me how do I get the RSS feed address?

I would like to also choose to display the RSS feed for the latest listings or by category, if possible.

If there is any other way to display these listings on my homepage other than using RSS feeds, I would love to hear of them.