School trousers for tall skinny children

[Outlookmainlyfair]

Looking more dumpling than Adonis I have limited experience of clothes being too big but Dc take after their dad!
Can anyone recommend somewhere that sells long school trousers - 36".
Or girls jeans for 13 yo that are super slim?
Many thanks x

Topshop or ASOS tall may be worth a go? They do small sizes

My DD lives in Primark jeans. Can’t help with school trousers- dd wears skirts because we can’t find slim fit (but not skintight) trousers that are long enough in length but don’t look like wide leg clown trousers on her. She HAD to have a pair for something recently and we got some in marks in age 16 (she’s just 13) that fit in the length but they had to be pulled in so much she looked like she was wearing padding.
Ds lives in next slim fit school trousers. They seem to get longer without getting massively wider which is helpful!

m&s for school trousers.
their jeans range is also good, but might be a bit curvey for a skinny teenager.

M&S do long and extra long length trousers. I buy a younger age (for the waist) but a long length for my skinny girls. The waists are also adjustable and they also have an extra hem for growing which can be let down.

I use Next for DS

Thanks so much!

ASOS definitely.

Long Tall Sally for the tall daughter. Also topshop.
M&s for school trousers.

Gap are great for skinny jeans.