 If you liked
Shin Shirayuki-hime Densetsu Prétear
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 ...then you might like
Shoujo Kakumei Utena
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-Both anime show a darker way to view the magical girl genre
-Both shows deal with real world issues, Pretear dealt with the feeling of alienation and loneliness that might come from a parent's remarriage while Utena dealt with toxic masculinity.
While Utena is much more conceptual, I have little doubt that if you liked either one of these shows, you'd enjoy the other