Cardcaptor Sakura and Sailor Moon were made with kids in mind, I think. Definitely seems like a lot of people grew up watching them.

Keep your hands off Eizouken is one of my recent favourites, and I think would be really enjoyable as a kid. Lots of imagination scenes and a really sweet story about friends.

Nichijou should also be inoffensive, just kid shenanigans. They don't always make sense, but the tone is very chill. Also Azumanga Daiou, similar vibes I think.

Paripi Koumei is a recent show about a girl trying to launch her singing career with the help of a reincarnated chinese general, I don't think it has any scary scenes but a lot of it does take place in a club, and depicts alcohol. But the story and characters are heart-warming and I enjoyed it a lot.

I've also heard very good things about Carole and Tuesday, which came out around the same time and also centres around music. But I'd recommend looking into the themes more, I don't know how serious it gets.

Hinamatsuri - I think this might be the funniest show I've ever watched. It cracked me up even on a rewatch. It does center on a Yakuza member, so there are some jokes that might appear scary, though being a comedy of course everything works out pretty quickly. It depends on her tolerance for those themes.

One I don't see recommended often is Gatchaman Crowds. I just looked up the rating and it is 13+, but I loved that show, and remember recommending it to my younger brother around your daughter's age.

I haven't met a 9-year-old in a while, so sorry if my recommendations skew a little older! Definitely the first three should be good for her, the others might need to wait a year or two depending on her tolerance and what you're okay showing her. But if she watched Little Witch Academia, none of these shows get darker than that, for sure.