Best device for an 8 year old?

Hi,

With the announcement of the Harry Potter full cast audio books I'd like to get these for my daughter as she loves the films.

What would be the best device for her to use Audible on? She'd likely listen to them when going to bed, or when she plays in her bedroom. She doesn't currently have any devices in her room, although she used to have an Amazon Fire for Kids before it broke.

We have an Echo Dot in the kitchen, so xould potentially get one of those. We also have an android tablet she could use. Although, the speaker tablets typically aren't very good.