Question: Who is the second most subscribed channel on youtube?
Disambiguated questions and answers: question: What is the second most subscribed channel overall on youtube called?
Who is the second most subscribed channel for an individual on youtube?
Who runs the second most subscribed channel on youtube?
answer: PewDiePie
Justin Bieber
Bieber
Felix Arvid Ulf Kjellberg
Kjellberg
Natural Questions answer: T - Series (from the Wikipedia article "List of most-subscribed YouTube channels")