I listen to quite a few Podcasts, they are listed below:
- Hotboxin' With Mike Tyson (Boxing)
- Believe You Me with Michael Bisping (UFC)
- Chael Sonnen (UFC)
- Skip and Shannon: Undisputed (NFL)
- Colin Cowherd (NFL)
- Pat McAfee Show (NFL)
- Joe Rogan Experience (General)
Why not Warrior13, have a look at what people are doing and see if you can find a niche that would attract viewers. The easiest one would be to do live commentary on Dolphins games talking about the team and what is happening around the NFL.
The one I listen to is Street Scores, Rico the guy who does it daily literally knows every rumor there is to know about Washington and the different players the team is interested in. It's actually quite interesting.