There are some questionable parts of this anime as it's old and a lot of anime from that time is like that, however, it's one of those anime that got what being

There are some questionable parts of this anime as it's old and a lot of anime from that time is like that, however, it's one of those anime that got what being a hero is about. Only one that I can think of in recent times is My Hero Academia. If that doesn't sway you to watch it, I think Gigguk included Onizuka as one of the top 20 most badass characters in anime a few years ago.