Spider-verse (an MCU Spider-man/Avengers fanfic)

Peter Parker enjoyed his run with the Avengers, and thinks it's about time to pursue his identity as the Amazing Spider-man. But, when he starts getting odd dreams and voices, he turns to Tony Stark for answers. When Stark's theories prove wrong, he thinks it might have a more mystical side to it, and recommends that Peter see a man Tony knew in college. As it turns out, Peter is just a small spider in an entire habitat of them across the Spiderverse.