For as long as I've been a Kpop fan, I've always heard about the supposed "SM Visual" standard and archetype. So here is a list of female idols from other agencies, to me, that fit that mold. This of course doesn't mean that other female idols aren't just as beautiful as the ones I mention. Just that they don't fit this supposed mold SM likes us to believe they have within the industry.
WONYOUNG. I don't really follow IZONE, but during the times I do watch their MVs, I'm shocked at how much she would fit the SM Visual mold. I'm not sure what IZONE's current contract situation is, or what agency she is from, but I think she's going to get even more popular as the years go by. If female idols were stocks, I'd be buying more of her even at her current price.
HEEJIN. An underappreciated idol from an underappreciated girl group. She's an ACE that SM would love, but that's not what this thread is about. Her visuals both meet the SM standard but also is unique. I think she's part of the reason why LSM has so much vested interest in LOONA.
SOHEE. Another gem that I think the bigger companies missed on. She captivated both JYP and YG on a reality competition show. And it's not difficult to wonder why. She is basically in nugu status because ELRIS just is not able to really get the public's attention since they're from a smaller agency. Her best bet may be to either go solo or just sign with a bigger agency once her contract is over. But in the meantime, just look at her.
JISOO. I'm not even going to write anything because I shouldn't have to.
do u even know her or not 
