Thanks for the recommendation of crime junkie.
I used to listen to my favourite murder and I like the 2 presenters but i found it a little disrespectful and too light hearted.
Enjoying crime junkie now, found somebody knows something a bit confusing to follow as i think there are 3 presenters and they tend to talk over each other .
Casefile was good.
I tend to prefer one off episodes, rather than a long running series but i did enjoy S Town.
Will try more of these recommendations