[doxtor]

Death Note or SNK (attack on titan)

[bobbyhill999]

prison schools scenes are great to watch nothing embarrassing cheer

[ecto_solo]

In my case, I've already watched some anime with my parents. I recommend the classic Death Note, but also the anime Parasite, which surprisingly was a little more popular. Maybe it's the sci-fi aspect that appeals to some parents, I don't know.

[RoseStar]

For me the best would be dragon ball z

[rikaso]

Death Note or FMA should be the good entries point for your parents