I cant see Tania as a chaotic evil, so her chaotic good seems fine for me. Even chaotic neutral may be more befitting as her obligations and where her trusts lie atm are with Amaria and keeping her safe. But we dont know more about her atm. But still, even then I honestly trust her.
When it comes to baddies, its more or less a gray area usually, especially with more detailed ones like reborn's characters. Because their actions can be considered just or unjust by various standards. What their intentions are may be for a better cause in their minds, but the result to achieve that arent great.
(So everyone goes in neutrals)