I previously went through Romans 9 in this post. I had a listen to a podcast by the Provisionist Perspective, which was on Romans 9, and thought they did a great job, so I thought I’d add a link here to it for you. The article they reference in the clip is here: https://beardedseminarian.wordpress.com/2017/07/31/romans-9-a-brief-non-calvinist-reading/