What is the Best Anime to Watch With Non-Anime Fans?
I’ve had the most success using Attack on Titan as a gateway to introduce people who swear they won’t like anime to their first series. The fact that the show is intense and violent, and draws the viewer in with that hectic first episode often catches people off guard and makes them realize that there is much more variety to anime than they assumed, as that the shows aren’t just for kids.
Source: https://gamerant.com/thread/what-is-the-best-anime-to-watch-with-non-anime-fans/