I used to watch jvlogging quite a lot during my college years back in 2008 - Tokyo Cooney, TkyoSam, Roger Swan to name a few.
I got fed up of the drama between content creators and stopped watching when I lived in Japan from 2014-2015.
Most of the scene has pretty much died out a few years ago as a lot of them eventually left Japan and most subscribers stopped watching this sort of content.
I still miss the golden years of jvlogging when YouTube was quite new and a few tens of thousand views was considered viral.
I've recently watched a few videos on TkyoSam and his channel is pretty much dead now. His content is stuck in the past and hasn't improved. I guess if the only thing interesting about you is "I live in Japan!" doesn't go far these days.