The Explorer by Katherine Rundell (but anything by this auther, she's written some excellent books) https://www.amazon.co.uk/Explorer-WINNER-COSTA-CHILDRENS-AWA...
The London Eye Mystery by Siobhan Dowd https://www.amazon.co.uk/London-Eye-Mystery-Siobhan-Dowd/dp/...
and The Guggenheim Mystery by Siobhan Dowd and Robin Stevens https://www.amazon.co.uk/Guggenheim-Mystery-Robin-Stevens/dp...
Hello Ruby. Adventures in coding https://www.amazon.co.uk/dp/1250065003/ (But I might spend mroe time with a Scratch book).
Nine Open Arms https://www.amazon.co.uk/dp/1743315856
My Little Book of Big Freedoms https://www.amazon.co.uk/dp/1780555067
The Lost Words https://www.amazon.co.uk/dp/0241253586
All of those are perhaps a bit "worthy", and we read a load of other books. We're going to make our way through anything published by Little Gems. These are small, short, books with a clear font and nice illustration. I think these are great for reluctant or new readers. Here's one example, but they have a load: Mr Birdnest and the House Next Door (lovely illustration by Hannah Shaw) https://www.amazon.co.uk/Birdsnest-House-Next-Door-Little/dp...
And things like The London Eye Mystery (which may be a bit too old for my child, we'll see how it goes) https://www.amazon.co.uk/London-Eye-Mystery-Siobhan-Dowd/dp/...
We're still reading a few heavily illustrated books. I love Kate Hindley's work, so I'm buying The Knight Who Said No! https://www.amazon.co.uk/Knight-Who-Said-No/dp/1788002083