My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World!

You may know this one as Tensei Kenja no Isekai Life: Daini no Shokugyou wo Ete, Sekai Saikyou ni Narimashita; that's My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! under its other release name. REVOROOT is the animation studio behind this TV series across 12 episodes. It's finished airing, so the whole thing is watchable start to finish.

It's filed here as Action, Adventure, and Comedy, which is usually the fastest way people find it while browsing by genre. If My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! works for you, Attack on Titan and Demon Slayer: Kimetsu no Yaiba are close matches — see the full related list below.