An updated list of Exo's SCP numbers and how I think they would classify:

SCP 2283 "Luhan": Euclid

SCP 2283-1 "The Red Tree Book": Safe

SCP 2285 "Xiumin": Euclid

SCP 2287 "Kai": Euclid

SCP 2296 "Baekhyun": Euclid

SCP 2304 "Suho": Euclid

SCP 2308 "D.O./Kyungsoo": Euclid

SCP 2309 "Sehun": Euclid

SCP 2315 "Chen": Euclid

SCP 2297 "Chenyeol": Keter

SCP 2293 "Kris/Yifan": Keter

SCP 2294 "Tao": Keter

SCP 2291 "Lay": Thaumiel/Euclid

SCP 2214 ????: Keter