There are great manga magazines out there. Teen boys have Shonen Jump, little ones have CoroCoro Comic, and what do the elementary to middle school girls have..? Nakayoshi! (Lit: Close Friends)
Aimed at young girls, this Kodansha mag features love girly stories, and of course the frequent Magical Girl stories. The Other Wiki has a complete list of manga published in Nakayoshi.
Went through a minor Retool in 2010, and is now aimed at an older audience.
Manga serialized in Nakayoshi:
- Arisa
- Ashita no Nadja
- Azuki-chan
- Cells at Work: Bacteria!
- Candy Candy
- Cardcaptor Sakura
- Cherry Juice
- The Cherry Project
- Chou Kuse ni Narisou
- Fairy Navigator Runa
- Ghost Hunt
- Goldfish Warning!
- Hell Girl
- I Am Here!
- Instant Teen: Just Add Nuts
- Kaitou Saint Tail
- Kamichama Karin
- Kamikami Kaeshi
- Kedamono Damono
- Kitchen Princess
- Magic Knight Rayearth
- Mamotte! Lollipop
- Mermaid Melody Pichi Pichi Pitch
- Mink
- Miracle Girls
- Missions of Love
- Pixie Pop (Gokkun! Puucho)
- Princess Knight (The Twin Knights and the second manga series)
- Pretty Cure
- Sabagebu!
- Sailor Moon
- Shaman King & a garden (spinoff of Shaman King)
- Shugo Chara!
- Sugar Sugar Rune
- Tantei Team KZ Jiken Note (The manga adaptation)
- Tokyo Mew Mew
- Tokyo Mew Mew A La Mode
- Tokyo Mew Mew Ole!
- UFO Baby
- Vampire Dormitory
- Zodiac PI