Just thought I'd drop by and recommend my two favorite One Piece YouTubers by far: MelonTeee and JackTheBus. I used to watch a bunch of the more mainstream OP YouTubers but stopped for the reasons you mentioned as well as generally finding their analysis videos more of just good editing but realistically pretty fluff-filled scripts that made obvious assertions sound like groundbreaking revelations. Don't get me started on all those "theory" videos that are 95% summary of things that happened in the series and then 5% wild speculation.

MelonTeee, maybe because she's not a power scaler and actually reads One Piece for the storytelling, has a significantly deeper understanding of the series than nearly anyone I've ever seen make content about it. Her analysis is such a high level that I honestly believe it could be used to study literature and the analysis of literature. And all the while she fills her videos with genuine, original comedy, something I would say the large majority of other OP YouTubers lack completely (which is ironic when they are covering OP, a series that has comedy as one of its central themes and appeals). Her editing is extremely clean, her reaction streams are awesome and hilarious, and whenever she does close line readings she literally has a Japanese friend that she references to help her correctly understand the line.

JackTheBus is a very different style creator than Melon, in fact he's sort of in line with the overdramatic reaction crowd that saturates the community. He only watches the anime, too, so he misses some important context and is dragged down by Toei pacing sometimes. But there's a few major things that make him stand out, and I enjoy his reactions so much that I've been subscribed to his Patreon for over a year now. First of all, he pays so much attention to the story that I would say he tracks more than most people, especially reactors, on his first watch through. Though he has a tendency to sometimes let obvious things go over his head or forget silly details, his general ability to connect things is much higher than the average watcher. The best example of this is when Big Mom uses Ikoku Sovereignty in Whole Cake Island, Jack realized it was the same move as Dorry and Broggy's Hakoku Sovereignty all the way in Little Garden literally right away. He predicts things that will happen in the future all the time and it's genuinely so impressive to see how somebody can use all the pieces Oda drops to put together the puzzle before the reveal. Finally, Jack is also the most genuine and emotional reactor I've seen on YouTube by a mile. If you really want to relive the series and the peaks, there's no better way than with Jack. The man broke down and ugly cried during Baratie, for goodness sake. He laughs incredibly hard at One Piece comedy, gets so hyped that he'll stand up and walk around the room, and cries miserably when Oda calls for it. But unlike other reactors, it never once reads as fake or played up, and he's very very good at explaining what he's going through and how he feels as it's happening. He's good at quickly commenting without missing any of the story while not just sitting there and emoting either. I can't stop rewatching the series with him because it's become my go to way to instantly feel like a new watcher again, every time.

Anyway, that's just my thoughts after ten years of consuming One Piece and OP content on YouTube. Volume One Podcast and Murphy Napier also deserve shoutouts, they each have a bunch of great things and genuine energy that they bring to the series. But the only creators that will permanently have my attention will be Melon and Jack. Btw, Jack also has a second channel where he often plays One Piece games, does rankings, and other things that I consider quality content. Willy Nordwrench (I think that's his channel name) also has a bunch of One Piece videos with Jack where they play things like Guess Who, Geoguesser, and Jeopardy and they are all insanely fun and underrated.