Corrector Yui, Cardcaptor Sakura Recommendations
Both are about Magical Girls.
And both girls have a little helper always with them :]
Magical girl who has to carry a burden, defending the world from mysterious threats. The girl has to fix or collect objects. The dress is not ever the same, there are many different outfits for the girl, depending by the situation/trouble. There are helpers, and many minor villains.
Both series have a main character who is a mahou shoujo with a cute (and yellow xD) pet that helps them to reach their goals. Both, Sakura and Yui uses different beautiful clothes ^-^
Both are a warm hit in the childhood for those who grown up in south america 20 years ago :')
-A girl with variety of clothes
-Also Sakura and Yui look alikes