Looking at Marvel's new releases page starting in July (I don't know how else to get a complete list of comics they currently publish, as opposed to historical, and I don't read DC anymore) I see:

Storm (I don't read this so I don't know how age-appropriate it is)
Electra (not appropriate for kids; it's an assassin hunting a serial killer)
She-Hulk (Dunno how age-appropriate this is since I'm not reading it - it sounds like fun but I missed the first few issues and I'm reading enough other things right now.)
Ms. Marvel (very kid-friendly; I highly recommend it)
Captain Marvel (kid-friendly)
Black Widow (I read the first two issues, which was not kid-friendly - she was working as an assassin, lots of blood - and then dropped it because I didn't enjoy the writing. Not sure if it's changed since.)
Hawkeye (Half-credit: there are two people using the name "Hawkeye" right now - Clint Barton, the original, and a teenager named Kate Bishop who was one of the Young Avengers. Or maybe she's 20 now. AFAIK this comic is still doing the thing where every second issue is about her.)
Thor (starting next month)
Spider-Woman (I didn't even know this was being published right now so I know nothing about it)

That's not counting all the women who are part of a team.