Books for an advanced reader of 6

[Owlsintowels]

Hi, can anyone recommend me some good books for my daughter please?
She's turning 6 and is a very good reader, I'm not sure of her reading she but it's likely to be in the teens. She can read eg Roald Dahl in her head at the same speed as me

She's just finished The Land of Roar and loved it. I'm struggling to find substantial books which have age appropriate content. She enjoys all the magic Kingdom fairy type books but they last 30 minutes and don't challenge her anymore
She also loves the worst witch, but again they're a quick easy read for her now.
Any recommendations very appreciated

101 Dalmatians
Swallows and Amazons
Black Beauty
Archie Greene
Goth Girl
Fairy Detective Agency
Pure Dead Magic

My Dd is a good reader, but not keen on scary things.
At that age, she especially liked the Tumtum and Nutmeg books (about little talking mice). There are quite a few in the series, we found them in the library.

Hi. You should have a look at this series I found on the kindle app. 'The Dinosauroids' It's hilarious and really imaginative. Also ebooks might be the way for fast readers as they are so much cheaper than paperbacks.

Naughtiest girl isnt the best Enid bottom option. We weren't mad on them either. Magic faraway tree series and wishing chair are amazing for a 6 year old. My favourite as a keen reader as a child and my DC have both loved them too. Famous five etc are fun as well

Just revisiting this in preparation for sending some bday suggestions to grandparents, thanks again everyone for some great ideas.
I've set DH the task of researching these on the way back from a stag. I'm sure they're the perfect antidote to a hangover 🤣

Has she read Alice in Wonderland and Through the Looking Glass?

The Green Knowe books (Lucy Boston) are also good, but may be a bit scary.