She's 15 - most of the above pp's won't accept her.
We had this problem with DD1 who was youngest in class, so forever having challenges being unable to access certain projects.
Is this for DofE or proper work experience? For DofE contact her primary school, or local Brownies, or Church Groups. DD did Brownies. Charity shops won't have them until 16, and then they aren't keen. DD2 helped out at her local cattery, but again, they can't accept until 16. I think you will be very limited OP.