Most of mine are true crime podcasts, I think I have two that aren't related to true crime.
Unresolved -
The Brabant Killers -
Pt. 1 Pt. 2 Pt. 3 Pt. 4 Pt. 5
The Brabant Killers is probably one of my series from him. His information can be a little off at times, but I like his style (WARNING: Micheal has a monotonous voice so I'd avoid it if that bothers you).
The Mississippi Hangings -
MS Hangings
The Millbrook Twins -
Pt. 1 Pt. 2 Pt. 3 - He mentions another podcast called the "Fall Line" which covers this in even more detail.
I would've linked these via YouTube, however I'm not going to because I try not to listen to TC at night (increases my chances of nightmares).
Criminology
They tend to cover cases over the course of a season, though lately they've been putting up individual cases for two weeks.
Hollywood & Crime
There are more that I'll probably try to post tomorrow, but it's getting late and I'm tired.