VRV (pronounced as "verve") is an online streaming service that was launched back in November 2016. Its content mainly focuses on "geek-related" culture and is centered around anime, gaming, and speculative fiction among others.
Hulu is a video-on-demand service offering a huge catalog of exclusive programs, Hulu originals, and many more. It launched its live television streaming service in 2017, but it is only currently available in the United States and Japan.
Crunchyroll is a platform where you can watch your favorite animes. It has over 25,000 episodes and 15,000 hours of the latest and greatest anime series available, including a system that will help you discover new animes.