Wednesday and Chainsaw Man

Snap twice and pull the cord.

Wednesday (Season 1)

Antisocial student Wednesday Addams (played by Jenna Ortega) has a wide array of murderous skills, but the one she is best at is getting people hurt and getting targeted by a murderer at her new school is just what she needs to put on her detective hat to drive most of season 1's predictable story - but the acting, writing, cinematography and music make this very entertaining. Recommended even for people who have never heard of the Addams Family before, and I'm looking forward to season 2!

Chainsaw Man (Season 1)

This VERY well animated series might use a lot of bright colors but it is much darker, gorier and more adult in content than Wednesday. Our protagonist Denji spends half the time killing devils as he's fused with a devil himself that lets him become the titular "Chainsaw Man", and the other half of the time trying to get laid. Finally, an anime that gets a teenagers priorities right! The only downside is that some of these devils are freaking weird design wise, but that makes it unique I suppose. Again recommended, and another one I'll be waiting for season 2 on.