Here are a few to get you started
What Frank Medrano eats (vegan calisthenics athlete)
https://www.youtube.com/watch?v=BQ9sfVsBbS8
What Patrick Baboumian eats (vegan strongman)
https://www.youtube.com/watch?v=lz9H7MMuKjY
Body building advice - plant based diet
https://www.youtube.com/watch?v=Lr4LIOq3grw
And there are plenty of vegan or vegetarian body builder communities out there, like this one
http://www.veganbodybuilding.com/