I always see beginners struggling to find engaging YouTube content in Japanese and as someone who consumes a lot of Japanese YouTube I never really understood the issue but I have created a list of the channels that I like with some short personal description so maybe it helps a few people to get into Japanese YouTube.
It has various sections as well as denoting whether it's a male or female speaker. In the description below I sometimes mention if it has hard subs or not and how easy it is to consume (though not always). It's honestly just my personal list from my own interests and the descriptions are all very subjective and it's not ultra polished or anything but it might still be useful to some. Might have typos here and there too
Some lists by other users that I recommend checking out too:
Japanese Media Recommendation List
Podcast collection (also has learners podcasts)
Livakivi My 15 Favorite Japanese YouTubers For Learning Japanese
by AdrixG