Shugo Chara!, Heartcatch Precure! Recommendations
shugo chara is about having an egg inside, this one is similar but having a flower, they both transform (looks quite similar) and fight bad people who try take the egg/tree
they both transform and they both heal peoples heart in order to protect them.
they also have these little guys to help them become the person they want to be!!
-Tsubomi and Amu are both girls who want to change her personality
-Tsubomi and Amu also have pink hair
-Also have a similar thing:
Shugo Chara: Have a egg in heart. When they despair they become a X-egg
Heartcatch Precure: Have a flower in heart. When they despair they wither
1. Both features a normal female student gain the ability to transform into a magical girl after meeting a non-human character.
2. Both features a group of bad guys who uses others' negative feeling as a weapon, where the magical girl has to fight to neutralize them.
I can say these 2 shows are ~70% similar.