One thing that is really, really great about Booktube is that you get to watch book reviews from all over the world with people who speak English - the country that wants to set itself apart yet unites people in other ways : communication is among them !
So I watch English, German, Turkish, American, Portuguese, world booktubers with delight and it's great to have different/same advices about books, discover books that I've never heard about before. Anyway, it's wonderful, I watch Booktube daily and I love it !
Thanks to you Booktubers for sharing so much with us ! This list will probably increase with time and once I have watched more videos, I'll post about each channel with more details in a booktubers shoutout.