Place/group to play RtR sealed online? (saw some 60cards videos)

I saw some YouTube videos of a guy, sometimes 2 playing RtR sealed (daily videos I think) and realized that if I play a sealed match a few times a week I will learn the set rather quickly. And just playing more will teach me a lot.

I tried looking over at the 60cards site, only found different videos and articles. Which are awesome. But not what I'm looking for.

I guess I'm looking for an online play group interested in playing sealed.

Any advice?