I've seen some users on the internet talking about these storyboards from Suicide Squad, and I tracked them down on this website:
https://agpstoryboards.squarespace.com/storyboards#/suicide-squad-1/
There are about thirty five storyboards to check out. My favourites include the tense discussion Joker and Harley have in the car before Batman attempts to capture them, and Joker walking through the destroyed helicopter shot down by Amanda Waller.
I found more great storyboards of Batman chasing after Harley Quinn and Joker, these were drawn by Rob McCallum.
(https://i.imgur.com/BKC9sUb.jpg)
(https://i.imgur.com/BEY7Pi2.jpg)
(https://i.imgur.com/R25Vmze.jpg)
(https://i.imgur.com/jFBewLL.jpg)