Love James and Jimmie on Small Town Murder. The amount of research that goes into each episode is absolutely insane for the pace that they pump out episodes, and those two dudes balance each other out well.
I especially admire how it never comes off as being disrespectful of the victims' stories, which is a common enough problem in the true crime genre that makes me steer clear of a lot of shows.
I'll have to check out the others listed! The rest are all new to me.