I looked in this online Belgian strip store and for the Dutch language market (quite small demographic), I could find 5 (five) titles for girls! And I'm pretty sure there's more (Noortje, Tina...)

http://www.stripweb.be/R-stripverhalen-mooie-navels-bestelle... http://www.stripweb.be/R-stripverhalen-girlz-bestellen.asp http://www.stripweb.be/R-stripverhalen-kathys-kat-bestellen.... http://www.stripweb.be/R-stripverhalen-dance-academy-bestell... http://www.stripweb.be/R-stripverhalen-claire-bestellen.asp