Interestingly, I was getting my hopes up about the Sautrantika's but then I came across the part that mentions that they believed in multiple Buddha's existing at the same time.
"For a disciple who has conviction in the Teacher's message & lives to penetrate it, what accords with the Dhamma is this:
'The Blessed One is the Teacher, I am a disciple. He is the one who knows, not I." -