If you wanna watch it legally, it's on Crunchyroll (sub), while the dub is on Funimation
*You have to be subscribed, for Crunchyroll in order to watch the episode as soon as it drops, you need to be a premium member. But the episode becomes available to non-premium members a week later (when the next episode drops). For Funimation you have to be a subscribed, it's not like Crunchyroll.
Ps. If none of those sites are available in your region, or the shows themselves, you can just watch it on Twist.moe