In my opinion the most promising 'rookie' group in current K-Pop. NCT is SM's most ambitious project yet, featuring an ever-expanding and shifting lineup of members to suit a wide range of musical styles and concepts. The groups' music is usually more on the experimental side, and until now their focus has been mainly on hip hop and R&B (with the exception of NCT Dream). Currently there are three units: NCT U NCT 127 NCT Dream So far I've been a fan of everything they've released. It'll be interesting to see what directions they go in in the future and how SM will manage the various lineups.