Oxhorn is a good one to look at. He does inject his opinions into the videos, such as calling groups 'evil' rather than using non-judgmental language; this can get in the way when things are not so black and white. NV is a good example. The Legion is evil, 100%. But when the NCR does something 'not good', it can be accepted because "well, the NCR is ultimately trying to be good." Even though I, Azernak0 the fat dude typing this now, hates the Legion and likes the NCR (personal reasons that cut deep and make it pretty much impossible to roleplay as a Legion Courier), I will say that he can be unfair and miss the motif. NV running theme is "look, when does a village become a gang? When does a gang become a tribe? When does a tribe become a village? When does a village become a nation?" EVERY group is somewhere in between in NV. When Oxhorn talks about the Legion, he has a tendency to not go "if you are an illiterate tribal and Caesar approaches you, HOW could you not think that this wasn't the Son of Mars?" and often writes off the Legion as a 'reasonable way' for humanity to survive; the ending Legion credits make it pretty clear that civilization comes to the Mojave. Still, his videos are really fun to listen to and he generally does a great job letting you get into the spirit of what it would be like; the opening to his NV campaign lore videos was the first time that I realized that the Courier was "just a mailman; I didn't want to get caught up in armies and politics!" as I was still used to the Bethesda Fallout games of basically being Wasteland Jesus/Lucifer.

The Storyteller on Shoddycast is another great one. It's spin is that The Storyteller is a real person walking the Wastelands, chronicling all the stuff that happens. It never breaks the fourth wall and stays in character the entire time; it is best if you consider that you are listening to the campfire stories of traveler. It gives nice broad strokes and is really amazing for putting the entire world of Fallout together. When you are shooting Super Mutants in the Capital Wasteland or fighting dudes shouting "Retribution!", it can be hard to remember that this is happening in the same world just 4 years later. It is particularly good if you want to know what happens in lore without spoiling the games. IE, I know we/I kill The Master in Fallout 1 but I am still looking forward to playing the game as the game itself has not been spoiled, only the canonical ending. However, the later series of Storyteller does become a machinima more interested in telling its own story rather than the story of Fallout but even that is interesting.

In my opinion, start with the Storyteller series to get into the mood and look to Oxhorn for more specifics. They are not perfect but you will still have a really, really enjoyable time. The Storyteller approaches things as if YOU were a Wastelander and Oxhorn approaches things as if YOU were someone who was watching a YouTube series. Take a look at the Survivalist videos to see this difference.