I'm looking for a legal streaming site where I can watch the whole My Hero Academia series for free. But for now, season 3 is enough.
Edit: I'm from India.
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you can find all 4 current Seasons on Crunchy Roll. I believe they are all English Subbed however only checked one episode of Season 3.
Be aware that Crunchy Roll does employ Geoblocking on some series. i am in Australia, not using a VPN and am not being blocked so availability might depend on where you are and current licencing agreements