Loki from MCU and/or from Norse mythology is excellent. I'm not well-versed in that Dragonball stuff, so I'll take your word for it.

Jack Sparrow is also just a fantastic example of Chaotic Neutral - he's always self-serving but nearly impossible to predict because how he acts and what he says doesn't really telegraph what he's actually going to do. Oftentimes, he does something that seems really nice but turns out to be a totally mixed bag - or he does something that appears to be mean but is actually kind of for the greater good.

These kinds of characters can be so fun to play.