Not a liveaboard but sv Panope does anchor testing. Best in the business. Technical and a bit dry, but rock solid information.
BTW - you do realize
1. Successful YT folks heavily censor their comments. An example is Sailing Atticus, a shoe-string couple, recently announced they are buying a replacement boat and started a Kickstart we campaign. Enormous negative feedback, especially now with so many struggling with jobs due to covid. All negative feedback is systematically removed leaving only fawning adulation.
2. YT sailors are coming I to 2.0 where they are successful enough to buy new boats. They are pivoting from austere cruisers to well funded sailors with half-million dollar boats. It's their deal and success, but just so you know, the game is changing out there.
I've stopped watching most. Adventures of an Old Sea Dog still keeps it real. A bit sporadic in videos.
Peter