She is not a super popular MBTI YouTube star, but she claims to be an INFJ in MBTI. She is an INFx for sure. Her name is Katie Marie. My guess is that she is an EII-Fi. Otherwise, she is an IEI-Ni.
Links To Her Videos:
http://www.youtube.com/watch?v=Z7uR9wBbgi8&t=1326s
http://www.youtube.com/watch?v=tHNdf6moliU