At the moment, my favourites are THE KPOPSIS and kikilee 

What about yours?
What about yours?
Her reactions is what really got me into her, they’re so entertaining to watch and she never fails to let that end!!OMG I love kikilee as well too!!!! I love her X1 reaction vids a lot. I've been watching Deacs vids as well too.
Form of Therapy (bc hes WHIPPED for jeonghan and his reactions are hilarious)
ReacttotheK (as a musician, i understand what they mean and its great to see so many reactions at once)
BRISxLIFE (he. is. the. greatest. and he knows the members so well and is actually dedicated to the fandomsnot a fake reactor who only is in it for the clout)
omg yes I’ve seen both of them, and I love the way Sam Johnson gets to experiment and analyse not only American singers, but also singers from around the world including kpop stars like exo (that he reacted to)As others have said, Form of Therapy is one of my faves. To see the way he analyzes the musical videos really makes you appreciate more the effort that gets put into them and you even learn and start noticing small details by your own as well.
I also like Sam Johnson who is a voice teacher and really got into kpop and its amazing singers. It's also entertaining to realize that some performances change a lot in vocalization and maybe it's just a small thingy like the shape of the mouth lol He reacts to all kinds of music so kpop ones get mixed but it's still pretty interesting.
oh yeah i go on a reaction spree on youtube after a comeback but sometimes it seeing different reactions to the new mv (cue everyones shook faces at jeonghans iconic part in fear)Form of Therapy and BRISxLIFE are the ones I go to regualrly. I just like quality content!
Other than that I just watch anyone who reacted to what I am interested to see at that moment. (I dont watch that often tho, it is mostly right after songs come out to see peoples opinions on it.)
Yes! And he is also a huge fan of Ailee so it's hilarious to see him fanboying over her vocals lolomg yes I’ve seen both of them, and I love the way Sam Johnson gets to experiment and analyse not only American singers, but also singers from around the world including kpop stars like exo (that he reacted to)![]()