What amazes me is how somebody just registered to a ROM hacking forum in order to ask questions about anime streaming.
My answer: no idea.
I just watch whatever appears on TV, instead of having ads over the anime, it has ads in between that.
And most ads are relevant to the show too unlike on streaming websites.
And legal websites usually don’t work over here because the content is meant for people in countries other than Japan apparently.
Since the question included manga:
I buy them at Lawson occasionally, they are even harder to find for online reading without subscribing to a paid app that might not even have the manga you want to read.