I Believe Crunchyroll has it here https://www.crunchyroll.com/angel-beats
Alternatively you could buy the Blueray set on Amazon https://www.amazon.com/Angel-Beats-Complete-Collection-Blu-ray/dp/B004XC5LHS this one is a bit pricey so the former would be better unless your into collecting.
A third Option Also Exist, it might be the worst ever site you have ever encountered but I'm sure you have heard of it :3
Amazon says July 26th
I see a distinct lack of Angel Beats, Claymore, FLCL, The Trigun movie, ANY Miyazaki film (For shame), Akira , The Cowboy Bebop movie, Akira, the fantastic Summer Wars and the director of that movies previous work, The Girl Who Leapt Through Time.
These are just a couple small suggestions, happy collecting man!