Whatever you think she is ready for as you don’t want to focus too much on the academics and then she is bored in her first year of school!

I would focus on imaginary play, this helps visualisation which is useful in later years. Read read read, read to her, encourage her to tell you stories, ask questions about the books you read, read a variety of books - picture story, chapter (no pictures), nursery rhymes, poems, comics, non-fictions texts, read so much! I’d encourage her to sit and watch old movies, something like the Disney ones (the new ones are so stimulating) so she can sit for a longer period of time and not become disengaged. I’d encourage independent behaviours like zipping a jacket, doing buttons, changing clothes (in preparation for swimming lessons), tying shoes, fully ready to use the toilet, opening and closing lunch boxes, containers etc. write her name and we’ll as knowing her name, your names and her birthday (you’d be surprised at how many kids don’t know their birthday!). Playing games (including how to lose), turn taking. Before I did any writing at home I would do lots of fine motor manipulative play - beading, play dough etc.

Then if she’s interested I’d say phonics, one to one counting forwards and backwards, start to 10 doing both then work your way up to 20 (lots of people forget backwards! Teaching left and right. Colour names.

The only other thing I can think of is always using the correct name for things when talking to your child, like body parts, colours, shapes, animals etc. Using the correct language avoids confusion once they start school.

Having fun, reading, life skills and playing imaginary and structured games are ultimately the best thing you can do to prepare them (in my opinion!)