#3 Sheamus
A lot of fans might know about Sheamus' workout channel Celtic Warrior Workouts, which is basically a channel dedicated to different workout routines. But the USP of this channel is that Sheamus doesn't work out alone, he brings in his co-WWE superstars along.
One of the best things about his channel is the fact that a lot of popular WWE superstars have been featured in his workout videos, which is such a great way for fans to see their beloved wrestlers in a non-wrestling capacity.
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
He started his channel with an intro video of him working out, which seemed like it would be more of a fitness channel, but his peers from WWE, such as Apollo Crews, Drew McIntyre, Jinder Mahal, and Cesaro joined him early on and set up a unique workout channel in which Sheamus gets candid with his fellow superstars.
After the initial phase, more and more popular superstars made their appearances on his channel which made his channel grow larger in quite quickly. He's already got the biggest names like Charlotte Flair, John Cena, Daniel Bryan and Becky Lynch on his show, and it's just a matter of time before we will see most of our favorite superstars performing unique workout sessions.
Jeff Cavaliere from ATHLEAN-X and professional YouTuber Jason Chen have also been featured on his channel, which is a remarkable indication of his popularity. With 7,30,000 subscribers and over 12 million views on his channel as of writing, Sheamus has been able to make it large on YouTube just as he did in WWE.
Explore Sheamus' workouts here: Celtic Warrior Workouts